Year	Percent
1950	10.78363
1955	6.81776
1960	6.84879
1965	9.6939
1970	15.60998
1975	15.38688
1980	11.39813
1985	8.46354
1990	7.30312
1995	6.064
2000	7.75272
2005	10.00044
2010	7.70585
2015	5.2223
2020	3.36629
2025	3.71325
2030	4.84041
2035	5.53199
2040	5.40399
2045	4.97549
2050	4.52953
2055	4.39306
2060	4.59724
2065	4.92925
2070	5.14732
2075	5.16195
2080	5.05306
2085	4.95876
2090	4.95221
2095	5.00719
2100	5.05352