Citizen statistics
| No. | Citizen | Country | XP |
| 1961 | 61,389 | ||
| 1962 | 61,360 | ||
| 1963 | 61,339 | ||
| 1964 | 61,328 | ||
| 1965 | 61,324 | ||
| 1966 | 61,309 | ||
| 1967 | 61,237 | ||
| 1968 | 61,211 | ||
| 1969 | 61,189 | ||
| 1970 | 61,181 | ||
| 1971 | 61,180 | ||
| 1972 | 61,151 | ||
| 1973 | 61,106 | ||
| 1974 | 61,101 | ||
| 1975 | 61,101 | ||
| 1976 | 61,097 | ||
| 1977 | 61,094 | ||
| 1978 | 61,083 | ||
| 1979 | 61,080 | ||
| 1980 | 61,069 |
