Year	Percent
1950	12.33773
1955	11.98563
1960	6.37974
1965	7.04314
1970	9.657
1975	11.83653
1980	13.18278
1985	11.06239
1990	9.31028
1995	8.59543
2000	9.78548
2005	10.98358
2010	9.88968
2015	7.48436
2020	6.30507
2025	6.67146
2030	8.05255
2035	7.31708
2040	6.33117
2045	5.78773
2050	5.79798
2055	5.93639
2060	5.91459
2065	5.74206
2070	5.53449
2075	5.40446
2080	5.39906
2085	5.43733
2090	5.43364
2095	5.37294
2100	5.28777