Bestand
32.1951/52,373 - 32.1951/52,382 - 33.1952/53,385 - 35.1954/55,409 - 41.1960,478; 43.1963,512; 44.1963/64,516; 44.1963/64,522 - 50.1969/70,596; 51.1970/71,597 - 52.1971/72,609 - 53.1972/73,621 - 54.1973/74,633 - 54.1973/74,643 - 55.1974/75,645 - 56.1975/76,657 - 57.1976/77,669 - 58.1977/78,681 - 59.1978/79,693 - 60.1979/80,705 - 61.1980/81,717 - 62.1981/82,729 - 63.1982/83,741 - 64.1983/84,753 - 65.1984/85,765 - 66.1985/86,777 - 67.1986,789 - 68.1987/88,798 - 69.1988/89,813 - 70.1989/90,825 - 71.1991,842A -