Year | Mean | Standard deviation | Variance | Minimum | Maximum |
2003 | 1733.686 | 21.807 | 475.546 | 1701.84 | 1775.74 |
2004 | 1729.420 | 13.769 | 189.583 | 1704.10 | 1747.80 |
2005 | 1729.149 | 8.200 | 67.243 | 1718.19 | 1741.13 |
2006 | 1722.800 | 14.219 | 202.175 | 1705.71 | 1754.33 |
2007 | 1732.205 | 15.786 | 249.204 | 1709.77 | 1758.43 |
2008 | 1736.168 | 14.241 | 202.814 | 1703.48 | 1754.65 |
2009 | 1741.963 | 11.775 | 138.641 | 1723.35 | 1764.90 |
2010 | 1740.801 | 7.691 | 59.146 | 1728.65 | 1756.84 |
2011 | 1755.575 | 22.918 | 525.236 | 1722.90 | 1793.17 |
2012 | 1763.733 | 14.424 | 202.045 | 1740.48 | 1785.71 |