Year	Percent
1950	11.78608
1955	10.49898
1960	8.76714
1965	7.33816
1970	6.20506
1975	5.49705
1980	4.69497
1985	4.67631
1990	6.33577
1995	6.41652
2000	6.79874
2005	5.93525
2010	5.3198
2015	6.0163
2020	6.98438
2025	8.54785
2030	9.60312
2035	10.28695
2040	10.84458
2045	11.89501
2050	13.97639
2055	15.49403
2060	16.1424
2065	16.20026
2070	17.30061
2075	19.75005
2080	21.76053
2085	23.27575
2090	24.45375
2095	25.61823
2100	26.8993