Year	Percent
1950	8.20901
1955	7.84135
1960	9.08467
1965	7.77795
1970	6.76194
1975	6.40663
1980	6.25289
1985	5.50562
1990	5.721
1995	5.5655
2000	6.07115
2005	5.73136
2010	6.51376
2015	7.85512
2020	9.37259
2025	10.92263
2030	12.69399
2035	14.39596
2040	15.72258
2045	16.47289
2050	16.92246
2055	17.7804
2060	18.97916
2065	20.37962
2070	21.89213
2075	23.29344
2080	24.56837
2085	25.8142
2090	27.09218
2095	28.37677
2100	29.63099