Year % of urban population 1960 6.477622971442949 1961 7.045216378808461 1962 7.660604574913052 1963 8.32873481544195 1964 9.03418793878986 1965 9.792042638397252 1966 10.661125037528983 1967 11.62877309335463 1968 12.674305346485559 1969 13.810172745394098 1970 15.052503898804368 1971 16.33984696438388 1972 17.67746520421572 1973 18.8098497457463 1974 19.14115389798315 1975 19.479114400401404 1976 19.826920247204242 1977 20.181564245810055 1978 20.540472444635853 1979 20.90698713469051 1980 21.284001366495108 1981 21.661712133405597 1982 22.047077648418746 1983 21.79039535198084 1984 20.660024818959997 1985 19.59188958789697 1986 18.5600523617323 1987 17.739553582430194 1988 17.505822950611872 1989 17.397577436482393 1990 16.750909281168447 1991 15.898354471772592 1992 15.187714003162952 1993 14.806794705027162 1994 15.013044031167395 1995 15.131898673111587 1996 15.341377009960663 1997 15.499771965898082 1998 15.79600929056334 1999 15.991941713116637 2000 15.901170021216357 2001 15.800425379070674 2002 15.704091439218246 2003 15.60544958389814 2004 15.498080030957142 2005 15.379869329576126 2006 15.253054076075797 2007 15.12126760707454 2008 14.99250500634589 2009 14.889160262354888 2010 14.683673439981096 2011 14.446350811330857 2012 14.335235861710963 2013 14.31197119465513 2014 14.67830388597836 2015 15.215066323153184 2016 15.917710689573402 2017 17.08240782951977 2018 18.092498249179517 2019 18.555484634058704 2020 18.82113676930775 2021 19.107071020422232 2022 19.34070870758933 2023 19.54422257868245