Year	Percent
1950	13.71889
1955	7.27618
1960	8.448
1965	10.65795
1970	12.99297
1975	12.17476
1980	9.43531
1985	8.75731
1990	8.53234
1995	9.28018
2000	9.71736
2005	8.11684
2010	5.62765
2015	5.19385
2020	5.94825
2025	6.17766
2030	5.62091
2035	4.99781
2040	4.52748
2045	4.37824
2050	4.54129
2055	4.72488
2060	4.69127
2065	4.47189
2070	4.28321
2075	4.26553
2080	4.41177
2085	4.58907
2090	4.65851
2095	4.59161
2100	4.48162