Year Total 1984 5293 1985 6734 1986 6872 1987 8310 1988 9459 1989 10060 1990 11880 1991 12570 1992 14100 1993 14680 1994 18550 1995 21680 1996 27180 1997 32010 1998 44260 1999 50660 2000 68060 2001 84370 2002 91220