Frequencies for first 10,000 rows of lonmin variable in nsrd dataset :

  Longitude |
     Minute |
    Portion |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        260        2.60        2.60
          1 |        260        2.60        5.20
          3 |        260        2.60        7.80
          5 |        520        5.20       13.00
          6 |      1,040       10.40       23.40
          9 |        260        2.60       26.00
         14 |        260        2.60       28.60
         16 |        780        7.80       36.40
         17 |        260        2.60       39.00
         18 |        260        2.60       41.60
         27 |      1,040       10.40       52.00
         29 |        260        2.60       54.60
         30 |        260        2.60       57.20
         31 |        260        2.60       59.80
         32 |        260        2.60       62.40
         36 |        520        5.20       67.60
         37 |        260        2.60       70.20
         41 |        260        2.60       72.80
         43 |        260        2.60       75.40
         45 |        260        2.60       78.00
         48 |        780        7.80       85.80
         50 |        520        5.20       91.00
         51 |        780        7.80       98.80
         56 |        120        1.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Jun 2016