Year	Percent
1950	8.11077
1955	7.7939
1960	8.98897
1965	7.61791
1970	6.29798
1975	6.06562
1980	5.99451
1985	5.37216
1990	5.26141
1995	5.2098
2000	5.80846
2005	5.53762
2010	6.28386
2015	7.54495
2020	8.8989
2025	10.45453
2030	12.04845
2035	13.54325
2040	14.63351
2045	15.10522
2050	15.47221
2055	16.32541
2060	17.55928
2065	19.01873
2070	20.59265
2075	22.0489
2080	23.34323
2085	24.57539
2090	25.81532
2095	27.06218
2100	28.28573