2011
50,000
99,479
100,000
150,000
200,000
20,005
1994
0
1995
20,317
1996
874
1997
57,237
1998
21,402
1999
15,607
2000
37,712
2001
12,546
2002
38,212
2003
51,553
2004
66,388
2005
4,603
2006
48,593
2007
203,251
2008
14,949
2009
69,775
2010
99,479
2011