Year	% of total taxes
1972	20.64244339125856
1973	20.256645279560036
1974	20.216998191681736
1975	21.09596819988643
1976	21.42116182572614
1977	18.661518661518663
1978	20.754716981132077
1979	19.689119170984455
1980	21.824542518837458
1981	22.540528536531202
1982	22.192782092279582
1983	19.189292543021033
1984	18.85307091957923
1985	21.541450777202073
1986	23.246294113998637
1987	20.26994310616148
1988	18.355392847085326
1989	19.554980595084086
1990	19.290116306009917
1991	20.51794453507341
1992	19.98861047835991
1993	22.662641215426568
1994	22.347423559507856
1995	23.113477613649376
1996	23.48306585939772
1997	26.23256913259277
1998	26.999391101686022
1999	26.575374037298094
2000	28.120597351366584
2001	29.377159848911035
2002	31.48652221928419
2003	32.830126078301255
2004	32.89023717595146
2005	36.514764302522714
2006	36.67973269734823
2007	38.88999905343864
2008	40.25187760901605
2009	39.49012640580769
2010	39.631927929063046
2011	43.42730046312894
2012	40.780657140550574