Annual % of total population
1960 31.075852742505
1961 31.516833925875
1962 31.7664645296199
1963 31.7764283921791
1964 31.5507736644015
1965 31.2029845069099
1966 30.8052398197201
1967 30.3464838443217
1968 29.829191102391
1969 29.2440355250325
1970 28.6112880618957
1971 27.963113498647
1972 27.2945831171839
1973 26.5985052574698
1974 25.9001978890143
1975 25.2147517382334
1976 24.5539685728599
1977 23.9543456530488
1978 23.459020628235
1979 23.1139715229681
1980 22.9141907968794
1981 22.813971946581
1982 22.7898313606278
1983 22.8395933906158
1984 22.9231513836273
1985 22.9882166669578
1986 23.0556516727163
1987 23.112874806158
1988 23.1568261611771
1989 23.178661886613
1990 23.1333290182456
1991 23.0098321161423
1992 22.8090072387523
1993 22.5222719925087
1994 22.1390134758171
1995 21.6754004322053
1996 21.144796333699
1997 20.537301327137
1998 19.864728496333
1999 19.1852028121463
2000 18.5167673225202
2001 17.815457845019
2002 17.1119407126763
2003 16.454506005338
2004 15.8605209899785
2005 15.3809253054026
2006 15.028426940992
2007 14.7996699771402
2008 14.7071065627852
2009 14.7620227394601
2010 14.9249385521774
2011 15.1479736517475
2012 15.4280041705227
2013 15.7326645847987
2014 16.022717548785
2015 16.2867455022669
2016 16.5228607834069
2017 16.6971075856346
2018 16.7788682123858
2019 16.8126098372633
2020 16.8397311511557
2021 16.8403350640924
2022 16.7758482748921
2023 16.6341378264053