Year	Percent
1950	5.69589
1955	5.66252
1960	5.51642
1965	3.93904
1970	2.60579
1975	3.47832
1980	2.54388
1985	2.31675
1990	2.33079
1995	2.0738
2000	2.00747
2005	1.80617
2010	1.69449
2015	2.16581
2020	3.14167
2025	4.96217
2030	7.4077
2035	10.76985
2040	14.6251
2045	18.69739
2050	21.57722
2055	23.07654
2060	24.44923
2065	25.79461
2070	27.44668
2075	28.93499
2080	29.83374
2085	30.55051
2090	31.27391
2095	32.0252
2100	32.73385