• USA
    1 June 1971
  • UK
    29 July 1971
  • Belarus
    3 August 1971
  • Spain
    9 August 1971
  • Serbia
    16 August 1971
  • Niue
    22 August 1971
  • Ireland
    4 September 1971
  • West Germany
    12 September 1971
  • Portugal
    14 September 1971
  • Turkey
    22 September 1971
  • Finland
    16 October 1971
  • Denmark
    19 October 1971
  • Jordan
    20 October 1971
  • Sweden
    25 December 1971