Year	Percent
1950	24.61475
1955	25.74304
1960	23.41636
1965	24.26881
1970	24.40354
1975	23.87955
1980	24.87522
1985	24.54293
1990	24.89262
1995	26.72785
2000	28.21169
2005	27.57752
2010	28.46032
2015	28.47369
2020	30.0412
2025	30.98493
2030	31.00429
2035	30.25155
2040	27.97937
2045	27.16861
2050	26.5709
2055	25.2591
2060	25.095
2065	25.08891
2070	24.88672
2075	24.79548
2080	24.57826
2085	24.34454
2090	24.11498
2095	23.99092
2100	23.91617