Population history
Population by year
| Year | Total | Male | Female | Density |
|---|---|---|---|---|
| 1950 | 14,000 | 7,000 | 7,000 | 61.22 |
| 1951 | 15,000 | 7,000 | 7,000 | 62.73 |
| 1952 | 15,000 | 7,000 | 7,000 | 63.92 |
| 1953 | 15,000 | 8,000 | 7,000 | 65.03 |
| 1954 | 15,000 | 8,000 | 7,000 | 66.20 |
| 1955 | 16,000 | 8,000 | 7,000 | 67.37 |
| 1956 | 16,000 | 8,000 | 7,000 | 68.47 |
| 1957 | 16,000 | 8,000 | 8,000 | 69.53 |
| 1958 | 16,000 | 8,000 | 8,000 | 70.70 |
| 1959 | 17,000 | 8,000 | 8,000 | 72.05 |
| 1960 | 17,000 | 9,000 | 8,000 | 73.59 |
| 1961 | 18,000 | 9,000 | 8,000 | 75.16 |
| 1962 | 18,000 | 9,000 | 8,000 | 76.18 |
| 1963 | 18,000 | 9,000 | 8,000 | 76.76 |
| 1964 | 18,000 | 9,000 | 9,000 | 77.44 |
| 1965 | 18,000 | 9,000 | 9,000 | 78.25 |
| 1966 | 19,000 | 9,000 | 9,000 | 79.23 |
| 1967 | 19,000 | 9,000 | 9,000 | 80.53 |
| 1968 | 19,000 | 10,000 | 9,000 | 82.05 |
| 1969 | 20,000 | 10,000 | 9,000 | 83.67 |
| 1970 | 20,000 | 10,000 | 10,000 | 85.37 |
| 1971 | 20,000 | 10,000 | 10,000 | 86.95 |
| 1972 | 20,000 | 10,000 | 10,000 | 86.54 |
| 1973 | 20,000 | 10,000 | 9,000 | 84.12 |
| 1974 | 19,000 | 10,000 | 9,000 | 81.49 |
| 1975 | 18,000 | 9,000 | 9,000 | 78.74 |
| 1976 | 18,000 | 9,000 | 8,000 | 76.03 |
| 1977 | 17,000 | 9,000 | 8,000 | 74.63 |
| 1978 | 17,000 | 9,000 | 8,000 | 74.37 |
| 1979 | 17,000 | 9,000 | 8,000 | 74.08 |
| 1980 | 17,000 | 9,000 | 8,000 | 73.74 |
| 1981 | 17,000 | 9,000 | 8,000 | 73.35 |
| 1982 | 17,000 | 9,000 | 8,000 | 72.80 |
| 1983 | 17,000 | 8,000 | 8,000 | 72.00 |
| 1984 | 17,000 | 8,000 | 8,000 | 71.09 |
| 1985 | 16,000 | 8,000 | 8,000 | 70.13 |
| 1986 | 16,000 | 8,000 | 7,000 | 69.17 |
| 1987 | 16,000 | 8,000 | 7,000 | 69.07 |
| 1988 | 16,000 | 8,000 | 8,000 | 69.80 |
| 1989 | 16,000 | 8,000 | 8,000 | 70.55 |
| 1990 | 17,000 | 8,000 | 8,000 | 71.33 |
| 1991 | 17,000 | 8,000 | 8,000 | 72.12 |
| 1992 | 17,000 | 9,000 | 8,000 | 72.79 |
| 1993 | 17,000 | 9,000 | 8,000 | 73.30 |
| 1994 | 17,000 | 9,000 | 8,000 | 73.70 |
| 1995 | 17,000 | 9,000 | 8,000 | 74.09 |
| 1996 | 17,000 | 9,000 | 8,000 | 74.40 |
| 1997 | 17,000 | 9,000 | 8,000 | 73.43 |
| 1998 | 17,000 | 8,000 | 8,000 | 71.16 |
| 1999 | 16,000 | 8,000 | 7,000 | 68.68 |
| 2000 | 15,000 | 8,000 | 7,000 | 66.06 |
| 2001 | 15,000 | 7,000 | 7,000 | 63.48 |
| 2002 | 14,000 | 7,000 | 7,000 | 62.37 |
| 2003 | 15,000 | 7,000 | 7,000 | 62.61 |
| 2004 | 15,000 | 7,000 | 7,000 | 62.82 |
| 2005 | 15,000 | 7,000 | 7,000 | 63.05 |
| 2006 | 15,000 | 7,000 | 7,000 | 63.36 |
| 2007 | 15,000 | 7,000 | 7,000 | 64.56 |
| 2008 | 15,000 | 8,000 | 7,000 | 66.59 |
| 2009 | 16,000 | 8,000 | 8,000 | 68.65 |
| 2010 | 16,000 | 8,000 | 8,000 | 70.73 |
| 2011 | 17,000 | 8,000 | 8,000 | 72.73 |
| 2012 | 17,000 | 8,000 | 8,000 | 73.59 |
| 2013 | 17,000 | 8,000 | 8,000 | 73.35 |
| 2014 | 17,000 | 8,000 | 8,000 | 73.05 |
| 2015 | 17,000 | 8,000 | 8,000 | 72.69 |
| 2016 | 17,000 | 8,000 | 8,000 | 72.22 |
| 2017 | 17,000 | 8,000 | 8,000 | 71.03 |
| 2018 | 16,000 | 8,000 | 8,000 | 69.15 |
| 2019 | 16,000 | 7,000 | 8,000 | 67.20 |
| 2020 | 15,000 | 7,000 | 7,000 | 65.18 |
| 2021 | 15,000 | 7,000 | 7,000 | 63.26 |
| 2022 | 14,000 | 7,000 | 7,000 | 61.35 |
| 2023 | 14,000 | 6,000 | 7,000 | 59.26 |
| 2024 | 13,000 | 6,000 | 7,000 | 57.20 |
| 2025 | 13,000 | 6,000 | 6,000 | 55.26 |