Year	Percent
1950	7.53194
1955	9.10619
1960	10.46875
1965	9.20028
1970	7.29224
1975	7.29775
1980	7.04693
1985	7.44333
1990	7.10341
1995	5.404
2000	4.23592
2005	4.24779
2010	4.87247
2015	5.50643
2020	5.34214
2025	4.98498
2030	4.55828
2035	4.40993
2040	4.65762
2045	5.02554
2050	5.19308
2055	5.09033
2060	4.89311
2065	4.80971
2070	4.91436
2075	5.12302
2080	5.2564
2085	5.22914
2090	5.09375
2095	4.96326
2100	4.94147