Year	% of tax revenue
1993	6.791604734872227
1994	7.568418344879905
1995	6.717693307768574
1996	7.007762576660806
1997	5.0685788471757895
1998	4.366011721876533
1999	3.613814100650707
2000	3.929186630574816
2001	2.6380782796468183
2002	2.4498835271995247
2003	2.453458499658487
2004	0.8195667341909836