12. Jg. 1969/2, 5, 9; 13. Jg. 1970/3, 5, 6, 7, 10, 12; 14. Jg. 1971/2, 4, 6, 7, 12; 15. Jg. 1972/3, 5, 6, 9, 12; 16. Jg. 1973/3, 5, 7, 9, 12; 17. Jg. 1974/3, 7, 10; 18. Jg. 1975/3, 7, 10; 19. Jg. 1976/3, 7, 9