Annual % of total population
1960 38.401808392620936
1961 37.91897062837137
1962 37.4229774845441
1963 36.861083503791484
1964 36.30018908942554
1965 35.74062705741029
1966 35.182518367639624
1967 34.63063872147607
1968 34.12460143063446
1969 33.6930295845929
1970 33.27172421530641
1971 32.87153739026875
1972 32.530814421020246
1973 32.21220685419699
1974 31.905051078994248
1975 31.64488412882169
1976 31.4161676702291
1977 31.166851194317825
1978 30.91556595066432
1979 30.665646423197586
1980 30.41720660840604
1981 30.172278504495587
1982 30.01415250426755
1983 29.902562033127104
1984 29.831284323228612
1985 29.775096131650375
1986 29.682615622827335
1987 29.51156952418881
1988 29.349605905864117
1989 29.237996962603532
1990 29.08725931175763
1991 28.912992000771546
1992 28.75443397050274
1993 28.5896229211651
1994 28.408878598111507
1995 28.22766922662845
1996 28.046418062695693
1997 27.869999913002477
1998 27.696819792170455
1999 27.517998562709614
2000 27.325458869075995
2001 27.109303022316805
2002 26.86567831703958
2003 26.61485665101858
2004 26.369089393589878
2005 26.126041351206442
2006 25.888000331241606
2007 25.658647519774803
2008 25.431645993408225
2009 25.203646061179292
2010 24.972585705565844
2011 24.745800891600588
2012 24.530247990245684
2013 24.32339238451875
2014 24.122426963066435
2015 23.908306308996153
2016 23.691837293505955
2017 23.470464425974374
2018 23.24395266954511
2019 23.00284256590409
2020 22.768376883431095
2021 22.524035740419695
2022 22.28035107956284
2023 22.033235103818186