Year % of total population 1960 2.4316823994649504 1961 2.486676345192387 1962 2.5527016685638992 1963 2.6204828253024615 1964 2.6900970007330836 1965 2.760765872762243 1966 2.8453621172698798 1967 2.9447412472146968 1968 3.0466563616026217 1969 3.3132434717022963 1970 3.6021754466134954 1971 3.9156334358641445 1972 4.254565586676746 1973 4.616392499942295 1974 5.006566175587466 1975 5.428085774019473 1976 5.885718533038136 1977 6.188568225101134 1978 6.338030956866864 1979 6.486767462644839 1980 6.633647022664111 1981 6.780807406054325 1982 6.931910182347501 1983 7.085871923808207 1984 7.248266802190111 1985 7.424473759323645 1986 7.617929044603045 1987 7.820335981763275 1988 8.001741577636324 1989 8.17612292147294 1990 8.344100956218574 1991 8.511142464425296 1992 8.67818862256798 1993 8.842414303461522 1994 9.005387983294955 1995 9.171760694939488 1996 9.344480692971292 1997 9.508286321635023 1998 9.676299788851253 1999 9.922576665570821 2000 10.160180961092886 2001 10.39019584551699 2002 10.614156179461308 2003 10.835100648873192 2004 11.05481926553453 2005 11.272988511633542 2006 11.496262241953103 2007 11.724389727029044 2008 11.959975306363079 2009 12.141085045968323 2010 12.141947472954305 2011 12.144615365815916 2012 12.186364779423311 2013 12.226922871768128 2014 12.237458760672828 2015 12.250932442815502 2016 12.259064199956942 2017 12.264012545986546 2018 12.274066535977338 2019 12.297738404187127 2020 12.333589646457508 2021 12.386359761155715 2022 12.46788580300873 2023 12.575817716877758