Year % of total population 1960 44.20001618204814 1961 44.285568588288974 1962 44.38199215632794 1963 44.495097885111136 1964 44.60980965232178 1965 44.7288589221977 1966 44.854762915421226 1967 44.973533173490075 1968 45.083911174478125 1969 45.19203545841174 1970 45.3102679138395 1971 45.42857479892487 1972 45.53959335727089 1973 45.61818800619793 1974 45.65222779778643 1975 45.67674437042482 1976 45.71609226134238 1977 45.73912792976501 1978 45.72066125901417 1979 45.702096042298656 1980 45.67418305788675 1981 45.66050965687934 1982 45.66495751699039 1983 45.63651978306013 1984 45.5786886264196 1985 45.51974814447805 1986 45.47887479456686 1987 45.47540183758134 1988 45.50699491217048 1989 45.53866508746454 1990 45.56023756799358 1991 45.5808496987614 1992 45.607527557404936 1993 45.643524291012405 1994 45.568529798955694 1995 45.44885216807128 1996 45.41665822252684 1997 45.362989392090405 1998 45.225972899799906 1999 45.04241897702504 2000 44.85077430467447 2001 44.64615893174622 2002 44.44455847139582 2003 44.25811174376441 2004 44.085557594132865 2005 43.93462722377859 2006 43.799579210648695 2007 43.67554182609858 2008 43.56613197910776 2009 43.460571998972505 2010 43.341257478126394 2011 43.20776389655044 2012 43.07271971451781 2013 42.93368439717666 2014 42.77733292982191 2015 42.59416023520783 2016 42.42399387366675 2017 42.255251043606414 2018 42.05277614646879 2019 41.83208983650144 2020 41.59810492332098 2021 41.362729139573986 2022 41.122827742201856 2023 40.856962218112024