Year	Percent
1950	27.27585
1955	27.99602
1960	27.45774
1965	27.378
1970	27.47887
1975	24.73172
1980	24.83578
1985	24.86401
1990	25.87088
1995	28.31267
2000	30.15348
2005	29.54862
2010	29.38871
2015	28.76326
2020	29.23358
2025	30.48058
2030	32.06896
2035	32.71539
2040	32.33815
2045	31.62379
2050	30.74058
2055	30.10003
2060	29.77309
2065	29.45659
2070	28.96733
2075	28.33586
2080	27.66239
2085	27.06108
2090	26.54669
2095	26.05205
2100	25.52997