Frequencies for interest variable in countyak2005 dataset :

Interest -- |
   Includes |
Taxable and |
Non-taxable |
   Interest |      Freq.     Percent        Cum.
------------+-----------------------------------
        107 |          1        3.57        3.57
        162 |          1        3.57        7.14
        237 |          2        7.14       14.29
        239 |          1        3.57       17.86
        318 |          1        3.57       21.43
        321 |          1        3.57       25.00
        549 |          1        3.57       28.57
        559 |          1        3.57       32.14
        671 |          1        3.57       35.71
        748 |          1        3.57       39.29
        786 |          1        3.57       42.86
        803 |          1        3.57       46.43
        959 |          1        3.57       50.00
      1,332 |          1        3.57       53.57
      1,600 |          1        3.57       57.14
      1,690 |          1        3.57       60.71
      3,607 |          1        3.57       64.29
      3,744 |          1        3.57       67.86
      3,829 |          1        3.57       71.43
      4,856 |          1        3.57       75.00
      6,710 |          1        3.57       78.57
     14,964 |          1        3.57       82.14
     20,749 |          1        3.57       85.71
     21,379 |          1        3.57       89.29
     29,253 |          1        3.57       92.86
    108,503 |          1        3.57       96.43
    228,911 |          1        3.57      100.00
------------+-----------------------------------
      Total |         28      100.00

by Jean Roth , jroth@nber.org , 26 Jun 2017