Bestand
1952,1-5u.7-15u.17-18; 1953,1-5u.7-9u.11-25; 1954,2-3u.5-8u.10-19u.21-24; 1955 - 1956; 1957,2-9u.11-17u.19-20u.24; 1958,1-10u.12u.14u.16-18u.20-23u.25; 1959,2-16u.18-21u.23; 1960,1u.3-9u.11-18u.21-25; 1961,1-6u.8-9u.11-18u.20-21; 1962,2-5u.7-11u.14-25; 1963,1u.3-17u.19-25; 1964,2-25; 1965,1u.3-15/16u.18/19-24; 1966,1-11/12u.15/16u.27; 1967,2u.4-20u.22-25; 1968,1-9u.11-26; 1969,3-4u.6-23u.26; 1970,2/3-10u.13/14-23u.25-26; 1971,1-9u.12-26; 1972,1-5u.7u.10-13u.15-18u.21/22-24u.26; 1973,1u.3-10u.12-15/16u.18u.21-24; 1974,2u.4u.7-24u.26; 1975,1-2u.5/6-11u.13-15u.17-20u.22u.24-25; 1976,3-8u.12/13-19u.21-23