Year	Percent
1950	11.31489
1955	14.71205
1960	13.46512
1965	13.71698
1970	7.83648
1975	6.55947
1980	6.74992
1985	9.777
1990	9.87285
1995	7.4722
2000	4.98054
2005	3.38589
2010	3.79685
2015	5.0206
2020	5.72061
2025	5.4242
2030	4.84378
2035	4.30442
2040	4.13435
2045	4.32309
2050	4.63827
2055	4.83996
2060	4.84581
2065	4.7416
2070	4.65784
2075	4.67602
2080	4.77511
2085	4.8861
2090	4.93143
2095	4.89377
2100	4.80271