Year % 1993 20.4289358647301 1994 19.2333448324844 1995 7.688340419970779 1996 12.581060589499 1997 24.8650431841236 1998 20.4953023711087 1999 12.6675834311588 2000 26.9432098765432 2001 18.4529746774349 2002 2.2313800381947897