Year	Percent
1950	11.51176
1955	10.33917
1960	9.87221
1965	9.76187
1970	7.62672
1975	7.1803
1980	6.65144
1985	5.08458
1990	5.56233
1995	6.39192
2000	6.23229
2005	5.22413
2010	2.40515
2015	2.7314
2020	2.98066
2025	3.1981
2030	3.19878
2035	3.12637
2040	3.01203
2045	2.8485
2050	2.78328
2055	2.82253
2060	2.87534
2065	2.91589
2070	2.92013
2075	2.91332
2080	2.9309
2085	2.98402
2090	3.07001
2095	3.15464
2100	3.21917