Year	Percent
1950	8.14665
1955	11.47287
1960	16.43424
1965	15.69058
1970	13.60205
1975	8.48396
1980	8.44499
1985	5.95313
1990	9.46215
1995	10.04895
2000	8.6852
2005	5.86611
2010	3.74564
2015	4.11544
2020	5.41516
2025	6.09364
2030	5.84313
2035	5.29692
2040	4.77398
2045	4.62563
2050	4.84879
2055	5.19346
2060	5.39488
2065	5.3721
2070	5.22903
2075	5.11786
2080	5.11973
2085	5.20324
2090	5.27427
2095	5.26494
2100	5.18877