| 日期 | 
                                    值 | 
                                    涨跌额 | 
                                    涨跌幅 | 
                                
                                | 2025-09-30 | 8.40 | -0.40 | -4.55% | 
| 2025-08-31 | 8.80 | 0.00 | 0.00% | 
| 2025-07-31 | 8.80 | 0.50 | 6.02% | 
| 2025-06-30 | 8.30 | 0.40 | 5.06% | 
| 2025-05-31 | 7.90 | -0.10 | -1.25% | 
| 2025-04-30 | 8.00 | 1.00 | 14.29% | 
| 2025-03-31 | 7.00 | 0.00 | 0.00% | 
| 2025-02-28 | 7.00 | 0.00 | 0.00% | 
| 2025-01-31 | 7.00 | -0.30 | -4.11% | 
| 2024-12-31 | 7.30 | 0.20 | 2.82% | 
| 2024-11-30 | 7.10 | -0.40 | -5.33% | 
| 2024-10-31 | 7.50 | 0.70 | 10.29% | 
| 2024-09-30 | 6.80 | 0.50 | 7.94% | 
| 2024-08-31 | 6.30 | 0.00 | 0.00% | 
| 2024-07-31 | 6.30 | 0.10 | 1.61% | 
| 2024-06-30 | 6.20 | -0.80 | -11.43% | 
| 2024-05-31 | 7.00 | -0.20 | -2.78% | 
| 2024-04-30 | 7.20 | -1.10 | -13.25% | 
| 2024-03-31 | 8.30 | -0.40 | -4.60% | 
| 2024-02-29 | 8.70 | 0.00 | 0.00% | 
| 2024-01-31 | 8.70 | -1.00 | -10.31% | 
| 2023-12-31 | 9.70 | -0.30 | -3.00% | 
| 2023-11-30 | 10.00 | -0.30 | -2.91% | 
| 2023-10-31 | 10.30 | 0.00 | 0.00% | 
| 2023-09-30 | 10.30 | -0.30 | -2.83% | 
| 2023-08-31 | 10.60 | -0.10 | -0.93% | 
| 2023-07-31 | 10.70 | -0.60 | -5.31% | 
| 2023-06-30 | 11.30 | -0.30 | -2.59% | 
| 2023-05-31 | 11.60 | -0.80 | -6.45% | 
| 2023-04-30 | 12.40 | -0.30 | -2.36% | 
| 2023-03-31 | 12.70 | -0.20 | -1.55% | 
| 2023-02-28 | 12.90 | 0.30 | 2.38% | 
| 2023-01-31 | 12.60 | 0.80 | 6.78% | 
| 2022-12-31 | 11.80 | -0.60 | -4.84% | 
| 2022-11-30 | 12.40 | 0.60 | 5.08% | 
| 2022-10-31 | 11.80 | -0.30 | -2.48% | 
| 2022-09-30 | 12.10 | -0.10 | -0.82% | 
| 2022-08-31 | 12.20 | 0.20 | 1.67% | 
| 2022-07-31 | 12.00 | 0.60 | 5.26% | 
| 2022-06-30 | 11.40 | 0.30 | 2.70% | 
| 2022-05-31 | 11.10 | 0.60 | 5.71% | 
| 2022-04-30 | 10.50 | 0.80 | 8.25% | 
| 2022-03-31 | 9.70 | 0.50 | 5.43% | 
| 2022-02-28 | 9.20 | -0.60 | -6.12% | 
| 2022-01-31 | 9.80 | 0.80 | 8.89% | 
| 2021-12-31 | 9.00 | 0.50 | 5.88% | 
| 2021-11-30 | 8.50 | -0.20 | -2.30% | 
| 2021-10-31 | 8.70 | 0.40 | 4.82% | 
| 2021-09-30 | 8.30 | 0.10 | 1.22% | 
| 2021-08-31 | 8.20 | -0.10 | -1.20% | 
| 2021-07-31 | 8.30 | -0.30 | -3.49% | 
| 2021-06-30 | 8.60 | 0.30 | 3.61% | 
| 2021-05-31 | 8.30 | 0.20 | 2.47% | 
| 2021-04-30 | 8.10 | -1.30 | -13.83% | 
| 2021-03-31 | 9.40 | -0.70 | -6.93% | 
| 2021-02-28 | 10.10 | 0.70 | 7.45% | 
| 2021-01-31 | 9.40 | -0.70 | -6.93% | 
| 2020-12-31 | 10.10 | -0.60 | -5.61% | 
| 2020-11-30 | 10.70 | 0.20 | 1.90% | 
| 2020-10-31 | 10.50 | -0.40 | -3.67% | 
| 2020-09-30 | 10.90 | 0.50 | 4.81% | 
| 2020-08-31 | 10.40 | -0.30 | -2.80% | 
| 2020-07-31 | 10.70 | -0.40 | -3.60% | 
| 2020-06-30 | 11.10 | 0.00 | 0.00% | 
| 2020-05-31 | 11.10 | 0.00 | 0.00% | 
| 2020-04-30 | 11.10 | 1.00 | 9.90% | 
| 2020-03-31 | 10.10 | 1.30 | 14.77% | 
| 2020-02-29 | 8.80 | 0.40 | 4.76% | 
| 2020-01-31 | 8.40 | -0.30 | -3.45% | 
| 2019-12-31 | 8.70 | 0.50 | 6.10% | 
| 2019-11-30 | 8.20 | -0.20 | -2.38% | 
| 2019-10-31 | 8.40 | 0.00 | 0.00% | 
| 2019-09-30 | 8.40 | 0.20 | 2.44% | 
| 2019-08-31 | 8.20 | 0.10 | 1.23% | 
| 2019-07-31 | 8.10 | -0.40 | -4.71% | 
| 2019-06-30 | 8.50 | 0.00 | 0.00% | 
| 2019-05-31 | 8.50 | 0.00 | 0.00% | 
| 2019-04-30 | 8.50 | -0.10 | -1.16% | 
| 2019-03-31 | 8.60 | 0.60 | 7.50% | 
| 2019-02-28 | 8.00 | -0.40 | -4.76% | 
| 2019-01-31 | 8.40 | 0.30 | 3.70% | 
| 2018-12-31 | 8.10 | 0.10 | 1.25% | 
| 2018-11-30 | 8.00 | 0.00 | 0.00% | 
| 2018-10-31 | 8.00 | -0.30 | -3.61% | 
| 2018-09-30 | 8.30 | 0.10 | 1.22% | 
| 2018-08-31 | 8.20 | -0.30 | -3.53% | 
| 2018-07-31 | 8.50 | 0.50 | 6.25% | 
| 2018-06-30 | 8.00 | -0.30 | -3.61% | 
| 2018-05-31 | 8.30 | 0.00 | 0.00% | 
| 2018-04-30 | 8.30 | 0.10 | 1.22% | 
| 2018-03-31 | 8.20 | -0.60 | -6.82% | 
| 2018-02-28 | 8.80 | 0.20 | 2.33% | 
| 2018-01-31 | 8.60 | 0.40 | 4.88% | 
| 2017-12-31 | 8.20 | -0.90 | -9.89% | 
| 2017-11-30 | 9.10 | 0.30 | 3.41% | 
| 2017-10-31 | 8.80 | -0.40 | -4.35% | 
| 2017-09-30 | 9.20 | 0.30 | 3.37% | 
| 2017-08-31 | 8.90 | -0.30 | -3.26% | 
| 2017-07-31 | 9.20 | -0.20 | -2.13% | 
| 2017-06-30 | 9.40 | -0.20 | -2.08% | 
| 2017-05-31 | 9.60 | -0.90 | -8.57% | 
| 2017-04-30 | 10.50 | -0.10 | -0.94% | 
| 2017-03-31 | 10.60 | -0.50 | -4.50% | 
| 2017-02-28 | 11.10 | -0.20 | -1.77% | 
| 2017-01-31 | 11.30 | 0.00 | 0.00% | 
| 2016-12-31 | 11.30 | -0.10 | -0.88% | 
| 2016-11-30 | 11.40 | -0.20 | -1.72% | 
| 2016-10-31 | 11.60 | 0.10 | 0.87% | 
| 2016-09-30 | 11.50 | 0.10 | 0.88% | 
| 2016-08-31 | 11.40 | 1.20 | 11.76% | 
| 2016-07-31 | 10.20 | -1.60 | -13.56% | 
| 2016-06-30 | 11.80 | 0.00 | 0.00% | 
| 2016-05-31 | 11.80 | -1.00 | -7.81% | 
| 2016-04-30 | 12.80 | -0.60 | -4.48% | 
| 2016-03-31 | 13.40 | 0.10 | 0.75% | 
| 2016-02-29 | 13.30 | -0.70 | -5.00% | 
| 2016-01-31 | 14.00 | 0.70 | 5.26% | 
| 2015-12-31 | 13.30 | -0.40 | -2.92% | 
| 2015-11-30 | 13.70 | 0.20 | 1.48% | 
| 2015-10-31 | 13.50 | 0.40 | 3.05% | 
| 2015-09-30 | 13.10 | -0.20 | -1.50% | 
| 2015-08-31 | 13.30 | 0.00 | 0.00% | 
| 2015-07-31 | 13.30 | 1.50 | 12.71% | 
| 2015-06-30 | 11.80 | 1.00 | 9.26% | 
| 2015-05-31 | 10.80 | 0.70 | 6.93% | 
| 2015-04-30 | 10.10 | -1.50 | -12.93% | 
| 2015-03-31 | 11.60 | -0.90 | -7.20% | 
| 2015-02-28 | 12.50 | 1.70 | 15.74% | 
| 2015-01-31 | 10.80 | -1.40 | -11.48% | 
| 2014-12-31 | 12.20 | -0.10 | -0.81% | 
| 2014-11-30 | 12.30 | -0.30 | -2.38% | 
| 2014-10-31 | 12.60 | -0.30 | -2.33% | 
| 2014-09-30 | 12.90 | 0.10 | 0.78% | 
| 2014-08-31 | 12.80 | -0.70 | -5.19% | 
| 2014-07-31 | 13.50 | -1.20 | -8.16% | 
| 2014-06-30 | 14.70 | 1.30 | 9.70% | 
| 2014-05-31 | 13.40 | 0.20 | 1.52% | 
| 2014-04-30 | 13.20 | 1.10 | 9.09% | 
| 2014-03-31 | 12.10 | -1.20 | -9.02% | 
| 2014-02-28 | 13.30 | 0.10 | 0.76% | 
| 2014-01-31 | 13.20 | -0.40 | -2.94% | 
| 2013-12-31 | 13.60 | -0.60 | -4.23% | 
| 2013-11-30 | 14.20 | -0.10 | -0.70% | 
| 2013-10-31 | 14.30 | 0.10 | 0.70% | 
| 2013-09-30 | 14.20 | -0.50 | -3.40% | 
| 2013-08-31 | 14.70 | 0.20 | 1.38% | 
| 2013-07-31 | 14.50 | 0.50 | 3.57% | 
| 2013-06-30 | 14.00 | -1.80 | -11.39% | 
| 2013-05-31 | 15.80 | -0.30 | -1.86% | 
| 2013-04-30 | 16.10 | 0.40 | 2.55% | 
| 2013-03-31 | 15.70 | 0.50 | 3.29% | 
| 2013-02-28 | 15.20 | -0.70 | -4.40% | 
| 2013-01-31 | 15.90 | 2.10 | 15.22% | 
| 2012-12-31 | 13.80 | -0.10 | -0.72% | 
| 2012-11-30 | 13.90 | -0.20 | -1.42% | 
| 2012-10-31 | 14.10 | -0.70 | -4.73% | 
| 2012-09-30 | 14.80 | 1.30 | 9.63% | 
| 2012-08-31 | 13.50 | -0.40 | -2.88% | 
| 2012-07-31 | 13.90 | 0.30 | 2.21% | 
| 2012-06-30 | 13.60 | 0.40 | 3.03% | 
| 2012-05-31 | 13.20 | 0.40 | 3.13% | 
| 2012-04-30 | 12.80 | -0.60 | -4.48% | 
| 2012-03-31 | 13.40 | 0.40 | 3.08% | 
| 2012-02-29 | 13.00 | 0.60 | 4.84% | 
| 2012-01-31 | 12.40 | -1.20 | -8.82% | 
| 2011-12-31 | 13.60 | 0.90 | 7.09% | 
| 2011-11-30 | 12.70 | -0.20 | -1.55% | 
| 2011-10-31 | 12.90 | -0.10 | -0.77% | 
| 2011-09-30 | 13.00 | -0.50 | -3.70% | 
| 2011-08-31 | 13.50 | -1.20 | -8.16% | 
| 2011-07-31 | 14.70 | -1.20 | -7.55% | 
| 2011-06-30 | 15.90 | 0.80 | 5.30% | 
| 2011-05-31 | 15.10 | -0.20 | -1.31% | 
| 2011-04-30 | 15.30 | -1.30 | -7.83% | 
| 2011-03-31 | 16.60 | 0.90 | 5.73% | 
| 2011-02-28 | 15.70 | -1.50 | -8.72% | 
| 2011-01-31 | 17.20 | -2.52 | -12.78% | 
| 2010-12-31 | 19.72 | 0.22 | 1.13% | 
| 2010-11-30 | 19.50 | 0.20 | 1.04% | 
| 2010-10-31 | 19.30 | 0.34 | 1.79% | 
| 2010-09-30 | 18.96 | -0.24 | -1.25% | 
| 2010-08-31 | 19.20 | 1.60 | 9.09% | 
| 2010-07-31 | 17.60 | -0.86 | -4.66% | 
| 2010-06-30 | 18.46 | -2.54 | -12.10% | 
| 2010-05-31 | 21.00 | -0.48 | -2.23% | 
| 2010-04-30 | 21.48 | -1.02 | -4.53% | 
| 2010-03-31 | 22.50 | -3.02 | -11.83% | 
| 2010-02-28 | 25.52 | -0.46 | -1.77% | 
| 2010-01-31 | 25.98 | -1.70 | -6.14% | 
| 2009-12-31 | 27.68 | -2.06 | -6.93% | 
| 2009-11-30 | 29.74 | 0.32 | 1.09% | 
| 2009-10-31 | 29.42 | 0.11 | 0.38% | 
| 2009-09-30 | 29.31 | 0.78 | 2.73% | 
| 2009-08-31 | 28.53 | 0.11 | 0.39% | 
| 2009-07-31 | 28.42 | -0.04 | -0.14% | 
| 2009-06-30 | 28.46 | 2.72 | 10.57% | 
| 2009-05-31 | 25.74 | -0.15 | -0.58% | 
| 2009-04-30 | 25.89 | 0.38 | 1.49% | 
| 2009-03-31 | 25.51 | 5.03 | 24.56% | 
| 2009-02-28 | 20.48 | 1.69 | 8.99% | 
| 2009-01-31 | 18.79 | 0.97 | 5.44% | 
| 2008-12-31 | 17.82 | 3.02 | 20.41% | 
| 2008-11-30 | 14.80 | -0.22 | -1.46% | 
| 2008-10-31 | 15.02 | -0.27 | -1.77% | 
| 2008-09-30 | 15.29 | -0.71 | -4.44% | 
| 2008-08-31 | 16.00 | -0.35 | -2.14% | 
| 2008-07-31 | 16.35 | -1.02 | -5.87% | 
| 2008-06-30 | 17.37 | -0.70 | -3.87% | 
| 2008-05-31 | 18.07 | 1.13 | 6.67% | 
| 2008-04-30 | 16.94 | 0.65 | 3.99% | 
| 2008-03-31 | 16.29 | -1.19 | -6.81% | 
| 2008-02-29 | 17.48 | -1.46 | -7.71% | 
| 2008-01-31 | 18.94 | 2.22 | 13.28% | 
| 2007-12-31 | 16.72 | -1.73 | -9.38% | 
| 2007-11-30 | 18.45 | -0.02 | -0.11% | 
| 2007-10-31 | 18.47 | 0.02 | 0.11% | 
| 2007-09-30 | 18.45 | 0.35 | 1.93% | 
| 2007-08-31 | 18.10 | -0.40 | -2.16% | 
| 2007-07-31 | 18.50 | 1.44 | 8.44% | 
| 2007-06-30 | 17.06 | 0.32 | 1.91% | 
| 2007-05-31 | 16.74 | -0.36 | -2.11% | 
| 2007-04-30 | 17.10 | -0.20 | -1.16% | 
| 2007-03-31 | 17.30 | -0.50 | -2.81% | 
| 2007-02-28 | 17.80 | 1.87 | 11.74% | 
| 2007-01-31 | 15.93 | -1.01 | -5.96% | 
| 2006-12-31 | 16.94 | 0.14 | 0.83% | 
| 2006-11-30 | 16.80 | -0.30 | -1.75% | 
| 2006-10-31 | 17.10 | 0.27 | 1.60% | 
| 2006-09-30 | 16.83 | -1.07 | -5.98% | 
| 2006-08-31 | 17.90 | -0.50 | -2.72% | 
| 2006-07-31 | 18.40 | -0.03 | -0.16% | 
| 2006-06-30 | 18.43 | -0.67 | -3.51% | 
| 2006-05-31 | 19.10 | 0.20 | 1.06% | 
| 2006-04-30 | 18.90 | 0.10 | 0.53% | 
| 2006-03-31 | 18.80 | 0.00 | 0.00% | 
| 2006-02-28 | 18.80 | -0.41 | -2.13% | 
| 2006-01-31 | 19.21 | 1.64 | 9.33% | 
| 2005-12-31 | 17.57 | -0.73 | -3.99% | 
| 2005-11-30 | 18.30 | 0.31 | 1.72% | 
| 2005-10-31 | 17.99 | 0.07 | 0.39% | 
| 2005-09-30 | 17.92 | 0.58 | 3.34% | 
| 2005-08-31 | 17.34 | 1.04 | 6.38% | 
| 2005-07-31 | 16.30 | 0.63 | 4.02% | 
| 2005-06-30 | 15.67 | 1.07 | 7.33% | 
| 2005-05-31 | 14.60 | 0.50 | 3.55% | 
| 2005-04-30 | 14.10 | 0.10 | 0.71% | 
| 2005-03-31 | 14.00 | 0.10 | 0.72% | 
| 2005-02-28 | 13.90 | -0.23 | -1.63% | 
| 2005-01-31 | 14.13 | -0.47 | -3.22% | 
| 2004-12-31 | 14.60 | 0.60 | 4.29% | 
| 2004-11-30 | 14.00 | 0.55 | 4.09% | 
| 2004-10-31 | 13.45 | -0.49 | -3.52% | 
| 2004-09-30 | 13.94 | 0.31 | 2.27% | 
| 2004-08-31 | 13.63 | -1.67 | -10.92% | 
| 2004-07-31 | 15.30 | -0.90 | -5.56% | 
| 2004-06-30 | 16.20 | -1.30 | -7.43% | 
| 2004-05-31 | 17.50 | -1.60 | -8.38% | 
| 2004-04-30 | 19.10 | 0.00 | 0.00% | 
| 2004-03-31 | 19.10 | -0.30 | -1.55% | 
| 2004-02-29 | 19.40 | 1.30 | 7.18% | 
| 2004-01-31 | 18.10 | -1.50 | -7.65% | 
| 2003-12-31 | 19.60 | -0.77 | -3.78% | 
| 2003-11-30 | 20.37 | -0.60 | -2.86% | 
| 2003-10-31 | 20.97 | 0.30 | 1.45% | 
| 2003-09-30 | 20.67 | -0.88 | -4.08% | 
| 2003-08-31 | 21.55 | 0.85 | 4.11% | 
| 2003-07-31 | 20.70 | -0.13 | -0.62% | 
| 2003-06-30 | 20.83 | 0.63 | 3.12% | 
| 2003-05-31 | 20.20 | 1.00 | 5.21% | 
| 2003-04-30 | 19.20 | 0.66 | 3.56% | 
| 2003-03-31 | 18.54 | 0.44 | 2.43% | 
| 2003-02-28 | 18.10 | -1.20 | -6.22% | 
| 2003-01-31 | 19.30 | 2.52 | 15.02% | 
| 2002-12-31 | 16.78 | 0.18 | 1.08% | 
| 2002-11-30 | 16.60 | -0.40 | -2.35% | 
| 2002-10-31 | 17.00 | 0.50 | 3.03% | 
| 2002-09-30 | 16.50 | 1.00 | 6.45% | 
| 2002-08-31 | 15.50 | 1.10 | 7.64% | 
| 2002-07-31 | 14.40 | -0.30 | -2.04% | 
| 2002-06-30 | 14.70 | 0.70 | 5.00% | 
| 2002-05-31 | 14.00 | -0.10 | -0.71% | 
| 2002-04-30 | 14.10 | -0.30 | -2.08% | 
| 2002-03-31 | 14.40 | 1.40 | 10.77% | 
| 2002-02-28 | 13.00 | -0.10 | -0.76% | 
| 2002-01-31 | 13.10 | -1.30 | -9.03% | 
| 2001-12-31 | 14.40 | 1.20 | 9.09% | 
| 2001-11-30 | 13.20 | 0.30 | 2.33% | 
| 2001-10-31 | 12.90 | -0.70 | -5.15% | 
| 2001-09-30 | 13.60 | 0.00 | 0.00% | 
| 2001-08-31 | 13.60 | 0.10 | 0.74% | 
| 2001-07-31 | 13.50 | -0.80 | -5.59% | 
| 2001-06-30 | 14.30 | -0.18 | -1.24% | 
| 2001-05-31 | 14.48 | 0.54 | 3.87% | 
| 2001-04-30 | 13.94 | -0.89 | -6.00% | 
| 2001-03-31 | 14.83 | -0.37 | -2.43% | 
| 2001-02-28 | 15.20 | 0.04 | 0.26% | 
| 2001-01-31 | 15.16 | 1.17 | 8.36% | 
| 2000-12-31 | 13.99 | -1.16 | -7.66% | 
| 2000-11-30 | 15.15 | 0.95 | 6.69% | 
| 2000-10-31 | 14.20 | -1.07 | -7.01% | 
| 2000-09-30 | 15.27 | 0.45 | 3.04% | 
| 2000-08-31 | 14.82 | -0.73 | -4.69% | 
| 2000-07-31 | 15.55 | 1.16 | 8.06% | 
| 2000-06-30 | 14.39 | 0.38 | 2.71% | 
| 2000-05-31 | 14.01 | -0.45 | -3.11% | 
| 2000-04-30 | 14.46 | 1.08 | 8.07% | 
| 2000-03-31 | 13.38 | -0.13 | -0.96% | 
| 2000-02-29 | 13.51 | -0.82 | -5.72% | 
| 2000-01-31 | 14.33 | -0.37 | -2.52% | 
| 1999-12-31 | 14.70 | 0.70 | 5.00% | 
| 1999-11-30 | 14.00 | -0.50 | -3.45% | 
| 1999-10-31 | 14.50 | -0.80 | -5.23% | 
| 1999-09-30 | 15.30 | -0.70 | -4.38% | 
| 1999-08-31 | 16.00 | 0.30 | 1.91% | 
| 1999-07-31 | 15.70 | -2.00 | -11.30% | 
| 1999-06-30 | 17.70 | 0.50 | 2.91% | 
| 1999-05-31 | 17.20 | -0.70 | -3.91% | 
| 1999-04-30 | 17.90 | 0.10 | 0.56% | 
| 1999-03-31 | 17.80 | -0.20 | -1.11% | 
| 1999-02-28 | 18.00 | 3.60 | 25.00% | 
| 1999-01-31 | 14.40 | -0.90 | -5.88% | 
| 1998-12-31 | 15.30 | -1.40 | -8.38% | 
| 1998-11-30 | 16.70 | 0.40 | 2.45% | 
| 1998-10-31 | 16.30 | 0.30 | 1.88% | 
| 1998-09-30 | 16.00 | 1.00 | 6.67% | 
| 1998-08-31 | 15.00 | -0.50 | -3.23% | 
| 1998-07-31 | 15.50 | 0.90 | 6.16% | 
| 1998-06-30 | 14.60 | -0.90 | -5.81% | 
| 1998-05-31 | 15.50 | 0.90 | 6.16% | 
| 1998-04-30 | 14.60 | -0.80 | -5.19% | 
| 1998-03-31 | 15.40 | -1.30 | -7.78% | 
| 1998-02-28 | 16.70 | -0.70 | -4.02% | 
| 1998-01-31 | 17.40 | 0.10 | 0.58% | 
| 1997-12-31 | 17.30 | 1.20 | 7.45% | 
| 1997-11-30 | 16.10 | -0.30 | -1.83% | 
| 1997-10-31 | 16.40 | -0.70 | -4.09% | 
| 1997-09-30 | 17.10 | -0.10 | -0.58% | 
| 1997-08-31 | 17.20 | -0.90 | -4.97% | 
| 1997-07-31 | 18.10 | -1.00 | -5.24% | 
| 1997-06-30 | 19.10 | 0.00 | 0.00% | 
| 1997-05-31 | 19.10 | -1.50 | -7.28% | 
| 1997-04-30 | 20.60 | -0.50 | -2.37% | 
| 1997-03-31 | 21.10 | -0.60 | -2.76% | 
| 1997-02-28 | 21.70 | -3.10 | -12.50% | 
| 1997-01-31 | 24.80 | -0.50 | -1.98% | 
| 1996-12-31 | 25.30 | 0.00 | 0.00% |