Year	Percent
1950	10.76239
1955	11.83233
1960	12.67512
1965	12.54673
1970	12.61601
1975	13.94485
1980	14.95371
1985	13.13848
1990	12.812
1995	14.03993
2000	14.08923
2005	14.5822
2010	15.60925
2015	17.07909
2020	17.10151
2025	17.1962
2030	16.38346
2035	16.59452
2040	17.73991
2045	19.60891
2050	22.04522
2055	22.73464
2060	22.43011
2065	21.74957
2070	21.41147
2075	21.94231
2080	23.0093
2085	23.7329
2090	23.75021
2095	23.3086
2100	22.93758