18,893
2014
5,000
10,000
15,000
20,000
25,000
1,960
1999
4,030
1,842
2000
4,400
1,779
2001
5,528
2,089
2002
7,456
2,080
2003
8,517
1,878
2004
9,857
2,009
2005
10,928
2,088
2006
13,723
2,399
2007
14,408
3,041
2008
14,800
3,278
2009
15,597
3,036
2010
16,651
4,397
2011
16,917
5,925
2012
16,007
8,257
2013
16,235
10,574
2014
18,893
