Year % of total population 1960 48.982881188388625 1961 48.990241464510774 1962 48.99622670003726 1963 49.00289765052169 1964 49.00983556384485 1965 49.01032110805955 1966 48.99900129307946 1967 48.98369344811388 1968 48.9747025615691 1969 48.97554046150305 1970 48.989033959622795 1971 49.01088115217819 1972 49.02848366849662 1973 49.039592310527176 1974 49.048758167603296 1975 49.053803201276786 1976 49.04751040618647 1977 49.03528031577741 1978 49.02284341210881 1979 49.01069897101631 1980 49.00592679640387 1981 49.005519506101 1982 49.00461116066929 1983 49.00577976787261 1984 49.00779122850054 1985 49.010952627558666 1986 49.01652354230306 1987 49.02254162304927 1988 49.02796203962622 1989 49.03466540586358 1990 49.04299381349188 1991 49.05120571772487 1992 49.05810276820049 1993 49.0636550835387 1994 49.06837718333843 1995 49.071981855790696 1996 49.07480352617974 1997 49.07764823647155 1998 49.08085079218162 1999 49.085696882290996 2000 49.09264095575672 2001 49.09649505626398 2002 49.09642231060557 2003 49.097287278422066 2004 49.101181203503046 2005 49.106378865403876 2006 49.11072285439972 2007 49.11415555670555 2008 49.11766114062599 2009 49.11922765407547 2010 49.12023791914239 2011 49.130822002582846 2012 49.14979883903878 2013 49.16771242328964 2014 49.18430886506732 2015 49.20142934974778 2016 49.217377956136126 2017 49.230740893970754 2018 49.24241882716466 2019 49.25166896294076 2020 49.25110816943578 2021 49.23927565324884 2022 49.23318546891623 2023 49.2323925481903