Year	% of tax revenue
1993	18.204312477907347
1994	16.14361034396186
1995	15.265609774763378
1996	13.002725264285115
1997	8.85881770259819
1998	6.2454744837932905
1999	5.297785042763971
2000	4.1674266033167635
2001	2.81141328218498
2002	2.6682622804684777
2003	2.578927292749792
2004	0.8082799979161078