2020

20,213.46

2019

15,787.14

2018

13,950.76

2017

14,783.81

2016

14,125.40

2015

12,300.65

2014

11,308.96

2013

12,563.88

2012

14,057.66

2011

13,142.21

2010

10,288.79

2009

9,425.00

2008

7,909.03

2007

6,540.58

2006

5,995.50

2005

4,588.95

2004

4,251.39

2003

3,781.42

2002

3,182.15

2001

2,818.44

2000

2,915.68