Bestand
16.1968,19-20u.48u.50-52; 17.1969,2-3u.28; 18.1970,1-2u.12-14u.22u.29u.35u.42u.44; 19.1971,4-5u.21-22u.27u.29u.33u.38u.40u.43-45u.48; 20.1972,1-45u.47u.49; 21.1973,10u.14-22u.26-27u.30u.37u.39u.43u.45-50u.52; 22.1974,2u.5-6u.8-9u.14-15u.20u.25-26u.29u.35u.41u.43u.45-47u.51; 23.1975,3u.16-17u.21u.31u.36u.44u.46u.49; 24.1976,2u.7u.15u.27u.29u.35u.43u.45-46; 25.1977,8u.33u.42; 26.1978,1-21u.28u.30u.35-37u.41-43u.46u.51; 27.1979,6u.10u.13-14u.17u.27u.31-32u.34u.36u.40u.44u.46-47u.49u.52; 28.1980,1-8u.10u.12-15u.17-18u.20-26u.28-30u.34-35u.37u.39-42u.44-45u.46u.48-50u.52; 29.1981,1-2u.5-9u.12u.14-15u.17-18u.20-24u.27-42u.45-47u.49-53; 30.1982,1-20u.22-45u.48-51; 31.1983,1-14u.16-19u.21u.23u.25u.27-32u.36-52; 32.1984,1-14u.16-20u.22u.24-25u.27-32u.34-42u.44-47u.49-51; 33.1985,1u.4-5u.10u.36-38u.40u.42u.44-45u.47-48u.51-52; 34.1986,1-5u.7-11u.13u.15-52; 35.1987,1-17u.19-29u.35-49u.52-53; 36.1988,1-3u.5-6u.8-20u.23-40u.42-52; 37.1989,2-52; 38.1990; 39.1991,1-2u.50u.52; 40.1992,1-8u.10-53; 41.1993; 42.1994,1-4u.7-28