27,929
2018
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
8,373
1999
18,386
8,900
2000
20,620
10,391
2001
20,620
10,576
2002
19,054
11,573
2003
19,924
12,493
2004
22,956
12,829
2005
23,639
12,781
2006
25,186
14,048
2007
25,252
14,389
2008
25,367
13,364
2009
20,836
14,306
2010
24,054
14,417
2011
25,627
13,619
2012
23,713
12,788
2013
25,175
12,447
2014
26,070
12,023
2015
26,939
11,725
2016
28,662
11,718
2017
27,150
11,698
2018
27,929
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