March 12 to July 08, 1979 (119 days)
December 25, 1978 to March 11, 1979 (77 days)
April 25 to November 08, 1978 (198 days)
December 14, 1976 to January 02, 1977 (20 days)
November 09 to December 13, 1976 (35 days)
August 23, 1971 to February 08, 1972 (170 days)
April 25 to August 22, 1971 (120 days)
