Population history
Population by year
| Year | Total | Male | Female | Density |
|---|---|---|---|---|
| 1950 | 19,000 | 8,000 | 10,000 | 13198.32 |
| 1951 | 20,000 | 9,000 | 11,000 | 13656.04 |
| 1952 | 20,000 | 9,000 | 11,000 | 13796.98 |
| 1953 | 20,000 | 9,000 | 11,000 | 13867.11 |
| 1954 | 20,000 | 9,000 | 11,000 | 13867.79 |
| 1955 | 20,000 | 9,000 | 11,000 | 13808.73 |
| 1956 | 20,000 | 9,000 | 11,000 | 13906.04 |
| 1957 | 21,000 | 9,000 | 11,000 | 14156.04 |
| 1958 | 21,000 | 9,000 | 11,000 | 14365.10 |
| 1959 | 21,000 | 9,000 | 11,000 | 14527.52 |
| 1960 | 21,000 | 9,000 | 12,000 | 14636.24 |
| 1961 | 21,000 | 9,000 | 12,000 | 14698.66 |
| 1962 | 22,000 | 9,000 | 12,000 | 14817.79 |
| 1963 | 22,000 | 10,000 | 12,000 | 15023.49 |
| 1964 | 22,000 | 10,000 | 12,000 | 15225.84 |
| 1965 | 22,000 | 10,000 | 12,000 | 15396.31 |
| 1966 | 23,000 | 10,000 | 12,000 | 15523.83 |
| 1967 | 23,000 | 10,000 | 12,000 | 15590.94 |
| 1968 | 23,000 | 10,000 | 12,000 | 15729.53 |
| 1969 | 23,000 | 10,000 | 12,000 | 15993.96 |
| 1970 | 24,000 | 11,000 | 13,000 | 16260.74 |
| 1971 | 24,000 | 11,000 | 13,000 | 16494.30 |
| 1972 | 24,000 | 11,000 | 13,000 | 16685.91 |
| 1973 | 25,000 | 11,000 | 13,000 | 16826.85 |
| 1974 | 25,000 | 11,000 | 13,000 | 16935.91 |
| 1975 | 25,000 | 11,000 | 13,000 | 17114.43 |
| 1976 | 25,000 | 11,000 | 13,000 | 17378.86 |
| 1977 | 26,000 | 12,000 | 14,000 | 17633.22 |
| 1978 | 26,000 | 12,000 | 14,000 | 17856.04 |
| 1979 | 26,000 | 12,000 | 14,000 | 18048.66 |
| 1980 | 27,000 | 12,000 | 14,000 | 18203.02 |
| 1981 | 27,000 | 12,000 | 14,000 | 18317.45 |
| 1982 | 27,000 | 12,000 | 14,000 | 18497.65 |
| 1983 | 27,000 | 13,000 | 14,000 | 18765.44 |
| 1984 | 28,000 | 13,000 | 15,000 | 19030.87 |
| 1985 | 28,000 | 13,000 | 15,000 | 19282.55 |
| 1986 | 29,000 | 13,000 | 15,000 | 19525.17 |
| 1987 | 29,000 | 13,000 | 15,000 | 19762.42 |
| 1988 | 29,000 | 14,000 | 15,000 | 19986.91 |
| 1989 | 30,000 | 14,000 | 15,000 | 20190.27 |
| 1990 | 30,000 | 14,000 | 15,000 | 20374.83 |
| 1991 | 30,000 | 14,000 | 16,000 | 20553.36 |
| 1992 | 30,000 | 14,000 | 16,000 | 20729.20 |
| 1993 | 31,000 | 14,000 | 16,000 | 20896.31 |
| 1994 | 31,000 | 15,000 | 16,000 | 21057.38 |
| 1995 | 31,000 | 15,000 | 16,000 | 21214.09 |
| 1996 | 31,000 | 15,000 | 16,000 | 21367.45 |
| 1997 | 32,000 | 15,000 | 16,000 | 21518.46 |
| 1998 | 32,000 | 15,000 | 16,000 | 21656.04 |
| 1999 | 32,000 | 15,000 | 16,000 | 21751.34 |
| 2000 | 32,000 | 15,000 | 16,000 | 21781.54 |
| 2001 | 32,000 | 15,000 | 16,000 | 21776.51 |
| 2002 | 32,000 | 15,000 | 16,000 | 21759.40 |
| 2003 | 32,000 | 15,000 | 16,000 | 21727.85 |
| 2004 | 32,000 | 15,000 | 16,000 | 21682.89 |
| 2005 | 32,000 | 15,000 | 16,000 | 21617.45 |
| 2006 | 32,000 | 15,000 | 16,000 | 21515.10 |
| 2007 | 31,000 | 15,000 | 16,000 | 21367.45 |
| 2008 | 31,000 | 15,000 | 16,000 | 21366.44 |
| 2009 | 32,000 | 15,000 | 16,000 | 21720.47 |
| 2010 | 33,000 | 16,000 | 16,000 | 22257.38 |
| 2011 | 33,000 | 16,000 | 17,000 | 22782.22 |
| 2012 | 34,000 | 16,000 | 17,000 | 23295.97 |
| 2013 | 35,000 | 17,000 | 18,000 | 23789.93 |
| 2014 | 36,000 | 17,000 | 18,000 | 24246.98 |
| 2015 | 36,000 | 18,000 | 18,000 | 24669.13 |
| 2016 | 37,000 | 18,000 | 19,000 | 25017.45 |
| 2017 | 37,000 | 18,000 | 19,000 | 25287.25 |
| 2018 | 38,000 | 18,000 | 19,000 | 25607.05 |
| 2019 | 38,000 | 18,000 | 19,000 | 25576.51 |
| 2020 | 38,000 | 18,000 | 19,000 | 25537.25 |
| 2021 | 38,000 | 18,000 | 19,000 | 25857.05 |
| 2022 | 38,000 | 19,000 | 19,000 | 26128.52 |
| 2023 | 38,000 | 19,000 | 19,000 | 26145.30 |
| 2024 | 38,000 | 18,000 | 19,000 | 25926.85 |
| 2025 | 38,000 | 18,000 | 19,000 | 25732.22 |