Year	Number of
1987	1.211
1994	1.616
1995	1.073
1998	1.224
1999	1.989
2000	2.547
2003	1.594
2004	1.414
2005	1.262
2006	0.8582
2007	0.9902
2008	0.9085
2009	0.8898
2010	0.687
2011	0.616
2012	0.6119