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