Year	Number of
1980	55
1981	41
1982	49
1983	48
1984	54
1985	37
1986	49
1987	34
1988	41
1989	75
1992	60
1993	70
1994	94
2000	54
2001	63
2002	51
2003	22
2004	50
2005	63
2006	44
2007	53