Year	Number of
1980	78
1981	81
1982	56
1983	78
1984	76
1985	50
1986	60
1987	77
1988	77
1989	70
1990	82
1991	47
1992	58
1993	45
1994	53
1996	53
1997	76
1998	85
1999	95
2000	89
2001	75
2002	97
2003	95
2004	97
2005	117
2006	127