Year Total 1984 4012 1985 3975 1986 4085 1987 4280 1988 4425 1989 4467 1990 4671 1991 4533 1992 4546 1993 12590 1994 17270 1995 20650 1996 28370 1997 35140 1998 39730 1999 47640 2000 67940 2001 83280 2002 93380