Year	Percent
1950	14.21033
1955	11.14233
1960	11.21742
1965	13.76233
1970	15.22873
1975	15.03014
1980	14.77728
1985	14.32685
1990	16.35777
1995	16.46083
2000	14.09603
2005	10.1284
2010	7.95038
2015	7.68398
2020	8.24869
2025	7.60392
2030	6.45217
2035	5.36341
2040	4.80985
2045	4.80183
2050	4.94991
2055	4.87899
2060	4.55185
2065	4.20285
2070	4.04042
2075	4.11735
2080	4.29621
2085	4.4091
2090	4.37286
2095	4.25424
2100	4.17609