Year	Percent
1950	13.5209
1955	7.01167
1960	7.64224
1965	10.54047
1970	12.38618
1975	13.71147
1980	11.85117
1985	9.7284
1990	8.99593
1995	9.7755
2000	10.95082
2005	10.059
2010	7.48598
2015	6.12184
2020	6.39258
2025	7.66034
2030	7.01968
2035	6.0525
2040	5.51807
2045	5.51483
2050	5.64238
2055	5.62999
2060	5.48111
2065	5.27385
2070	5.1456
2075	5.14358
2080	5.19139
2085	5.20152
2090	5.14985
2095	5.065
2100	4.99575