1990-01-01	6
1991-01-01	5
1992-01-01	5
1993-01-01	4
1994-01-01	3
1995-01-01	22
1996-01-01	7
1997-01-01	8
1998-01-01	11
1999-01-01	15
2000-01-01	6
2001-01-01	13
2002-01-01	28
2003-01-01	78
2004-01-01	95
2005-01-01	67
2006-01-01	71
2007-01-01	132
2008-01-01	145
2009-01-01	234
2010-01-01	340
2011-01-01	436
2012-01-01	457
2012-12-17	1
2013-01-01	248
2013-12-12	6
2013-12-17	66