Year	Percent
1950	13.74975
1955	7.65209
1960	8.40083
1965	10.07144
1970	11.63975
1975	11.56754
1980	9.68033
1985	9.46138
1990	9.16316
1995	9.25987
2000	10.17834
2005	8.61065
2010	6.5922
2015	6.06829
2020	8.12634
2025	9.52796
2030	8.37917
2035	7.35836
2040	6.69561
2045	6.56969
2050	6.76452
2055	6.9367
2060	6.82947
2065	6.44727
2070	6.02987
2075	5.80632
2080	5.77122
2085	5.79275
2090	5.74242
2095	5.58957
2100	5.39417