62 Leap    1977    Dec     31      23:59:60        +       S
  63 Leap    1978    Dec     31      23:59:60        +       S
  64 Leap    1979    Dec     31      23:59:60        +       S
  65 Leap    1981    Jun     30      23:59:60        +       S
  66 Leap    1982    Jun     30      23:59:60        +       S
  67 Leap    1983    Jun     30      23:59:60        +       S
  68 Leap    1985    Jun     30      23:59:60        +       S
  69 Leap    1987    Dec     31      23:59:60        +       S
  70 Leap    1989    Dec     31      23:59:60        +       S
  71 Leap    1990    Dec     31      23:59:60        +       S
  72 Leap    1992    Jun     30      23:59:60        +       S
  73 Leap    1993    Jun     30      23:59:60        +       S
  74 Leap    1994    Jun     30      23:59:60        +       S
  75 Leap    1995    Dec     31      23:59:60        +       S
  76 Leap    1997    Jun     30      23:59:60        +       S
  77 Leap    1998    Dec     31      23:59:60        +       S
  78 Leap    2005    Dec     31      23:59:60        +       S
  79 Leap    2008    Dec     31      23:59:60        +       S
  80 Leap    2012    Jun     30      23:59:60        +       S
  81 Leap    2015    Jun     30      23:59:60        +       S

  82 
  83 #       Updated through IERS Bulletin C51
  84 #       File expires on:  28 December 2016

  62 Leap    1977    Dec     31      23:59:60        +       S
  63 Leap    1978    Dec     31      23:59:60        +       S
  64 Leap    1979    Dec     31      23:59:60        +       S
  65 Leap    1981    Jun     30      23:59:60        +       S
  66 Leap    1982    Jun     30      23:59:60        +       S
  67 Leap    1983    Jun     30      23:59:60        +       S
  68 Leap    1985    Jun     30      23:59:60        +       S
  69 Leap    1987    Dec     31      23:59:60        +       S
  70 Leap    1989    Dec     31      23:59:60        +       S
  71 Leap    1990    Dec     31      23:59:60        +       S
  72 Leap    1992    Jun     30      23:59:60        +       S
  73 Leap    1993    Jun     30      23:59:60        +       S
  74 Leap    1994    Jun     30      23:59:60        +       S
  75 Leap    1995    Dec     31      23:59:60        +       S
  76 Leap    1997    Jun     30      23:59:60        +       S
  77 Leap    1998    Dec     31      23:59:60        +       S
  78 Leap    2005    Dec     31      23:59:60        +       S
  79 Leap    2008    Dec     31      23:59:60        +       S
  80 Leap    2012    Jun     30      23:59:60        +       S
  81 Leap    2015    Jun     30      23:59:60        +       S
  82 Leap    2016    Dec     31      23:59:60        +       S
  83 
  84 #       Updated through IERS Bulletin C52
  85 #       File expires on:  28 June 2017