Year	Percent
1950	14.36255
1955	14.12639
1960	13.93946
1965	13.73595
1970	13.29143
1975	12.8172
1980	12.19268
1985	11.60063
1990	11.21065
1995	11.464
2000	11.44532
2005	11.74408
2010	11.76024
2015	11.83124
2020	12.92226
2025	14.65353
2030	17.039
2035	19.77548
2040	21.42041
2045	22.53163
2050	23.41537
2055	24.28794
2060	25.44643
2065	26.47388
2070	27.14231
2075	27.40832
2080	27.49208
2085	27.48226
2090	27.38085
2095	27.117
2100	26.69754