Annual % of total population
1960 19.752758725788265
1961 19.76999988407388
1962 19.783979039550374
1963 19.790102622010995
1964 19.795866664405718
1965 19.81059914465809
1966 19.840433998141048
1967 19.883524678100077
1968 19.937356481408926
1969 19.99698265855337
1970 20.062728617048094
1971 19.9069458144507
1972 19.732805891492784
1973 19.59606251890207
1974 19.49200609150753
1975 19.419894569282782
1976 19.379936926496807
1977 19.371001182108618
1978 19.391672300453465
1979 19.43828313696436
1980 19.506128335637484
1981 19.56402763449682
1982 19.62988932950404
1983 19.6783123114407
1984 19.71800019849906
1985 19.753525553736885
1986 19.78506137474745
1987 19.808480949286864
1988 19.82026070284083
1989 19.827177003695294
1990 19.84044875727885
1991 19.811043912288177
1992 19.747132444118687
1993 19.70722264336265
1994 19.687749116922273
1995 19.680849749462396
1996 19.679977188790218
1997 19.681347618308532
1998 19.682070242976145
1999 19.681729893169834
2000 19.682821331681822
2001 19.688113799223224
2002 19.697931549282988
2003 19.60351335276386
2004 19.490536283504024
2005 19.387559115975527
2006 19.295900851018104
2007 19.213670909033958
2008 19.136009770313045
2009 19.059095459305155
2010 18.981300690665368
2011 18.90206050071203
2012 18.819271589993715
2013 18.7342065978606
2014 18.703231002117363
2015 18.727661828232257
2016 18.76168884321406
2017 18.808484700396644
2018 18.859657330827268
2019 18.89614080857692
2020 18.940626499354288
2021 19.036915268969434
2022 19.137124938381803
2023 19.196389210402405