[ 1975 - ]
1975 - Unknown 1975 - January 1975 - February 1975 - March 1975 - April 1975 - June 1975 - July 1975 - August 1975 - September 1975 - October 1975 - November 1975 - December 1976 - Unknown 1976 - January 1976 - February 1976 - March 1976 - April 1976 - May 1976 - June 1976 - July 1976 - August 1976 - October 1976 - November 1976 - December 1977 - January 1977 - Unknown 1977 - February 1977 - March 1977 - April 1977 - May 1977 - June 1977 - July 1977 - August 1977 - September 1977 - October 1977 - November 1977 - December 1978 - January 1978 - February 1978 - March 1978 - April 1978 - May 1978 - June 1978 - July 1978 - August 1978 - September 1978 - October 1978 - November 1978 - December 1979 - Unknown 1979 - January 1979 - February 1979 - March 1979 - April 1979 - May 1979 - June 1979 - July 1979 - August 1979 - September 1979 - October 1979 - November 1979 - December [ - 1979 ]