Year	Percent
1950	11.28772
1955	6.89833
1960	7.18028
1965	10.06048
1970	15.7248
1975	15.77068
1980	11.32883
1985	7.87758
1990	6.94652
1995	5.85658
2000	8.04375
2005	10.0031
2010	7.97754
2015	5.58982
2020	3.60883
2025	3.97444
2030	5.16162
2035	5.87646
2040	5.7549
2045	5.30601
2050	4.82849
2055	4.67091
2060	4.86763
2065	5.19559
2070	5.40683
2075	5.4089
2080	5.28512
2085	5.1699
2090	5.14183
2095	5.18267
2100	5.22257