Annual % of total population
1960 39.2881564668801
1961 40.6140775572195
1962 41.8252427749957
1963 42.8706695106415
1964 43.6186225632228
1965 44.0812400011597
1966 44.4149263597433
1967 44.6328823064338
1968 44.7291578415376
1969 44.717317650336
1970 44.6056021716773
1971 44.4025306102982
1972 44.1073564872646
1973 43.7284596085736
1974 43.2891633454634
1975 42.8128082611158
1976 42.3268787181321
1977 41.8535636363568
1978 41.4048461538179
1979 41.0023466638992
1980 40.6542518810012
1981 40.3786857083531
1982 40.1952280002562
1983 40.0869994752129
1984 40.0358456943265
1985 40.0410608684565
1986 40.1137925944906
1987 40.2303249919363
1988 40.3197404222479
1989 40.3971801866372
1990 40.4255756659078
1991 40.3408724439113
1992 40.2025713575862
1993 40.0363147194662
1994 39.8159924307467
1995 39.5406805858956
1996 39.2855025455158
1997 38.9873323444874
1998 38.5331209907216
1999 37.944619729556
2000 37.2347964558695
2001 36.4145365768202
2002 35.525243465667
2003 34.6526545825136
2004 33.7760322437151
2005 32.9242443624604
2006 32.1818867027222
2007 31.518217100699
2008 30.9366564168325
2009 30.4798128994315
2010 30.174757086198
2011 30.0201191554674
2012 29.9981479045674
2013 30.0785984842524
2014 30.2310003333832
2015 30.4216914741812
2016 30.6310669147797
2017 30.8462359067774
2018 31.0338997135398
2019 31.1680593398956
2020 31.2326832135604
2021 31.2166944845002
2022 31.1197312981392
2023 30.9338024278326