Frequencies for partbl2yearstests variable in dapstate2009 dataset :

      Tests |      Freq.     Percent        Cum.
------------+-----------------------------------
   319.1156 |          1        1.92        1.92
   406.1224 |          1        1.92        3.85
   433.3458 |          1        1.92        5.77
   444.1855 |          1        1.92        7.69
   475.8453 |          1        1.92        9.62
   481.6459 |          1        1.92       11.54
    519.115 |          1        1.92       13.46
   524.3153 |          1        1.92       15.38
   544.0702 |          1        1.92       17.31
   551.9413 |          1        1.92       19.23
   567.4528 |          1        1.92       21.15
   570.0956 |          1        1.92       23.08
   571.4317 |          1        1.92       25.00
   583.6852 |          1        1.92       26.92
   603.4966 |          1        1.92       28.85
   634.5004 |          1        1.92       30.77
   637.8551 |          1        1.92       32.69
   650.3044 |          1        1.92       34.62
   658.0656 |          1        1.92       36.54
   667.3352 |          1        1.92       38.46
   686.5649 |          1        1.92       40.38
    694.196 |          1        1.92       42.31
   694.8196 |          1        1.92       44.23
   695.0691 |          1        1.92       46.15
   695.4764 |          1        1.92       48.08
   699.7877 |          1        1.92       50.00
   701.2172 |          1        1.92       51.92
   705.0296 |          1        1.92       53.85
   707.4412 |          1        1.92       55.77
    710.284 |          1        1.92       57.69
   710.5547 |          1        1.92       59.62
   712.5184 |          1        1.92       61.54
   731.7199 |          1        1.92       63.46
   744.6781 |          1        1.92       65.38
   744.7823 |          1        1.92       67.31
   750.3587 |          1        1.92       69.23
   753.1767 |          1        1.92       71.15
   765.4338 |          1        1.92       73.08
   769.2139 |          1        1.92       75.00
   798.6103 |          1        1.92       76.92
   803.1037 |          1        1.92       78.85
   816.9225 |          1        1.92       80.77
   816.9561 |          1        1.92       82.69
    831.515 |          1        1.92       84.62
   842.1939 |          1        1.92       86.54
   850.0332 |          1        1.92       88.46
    913.212 |          1        1.92       90.38
   934.0717 |          1        1.92       92.31
    950.441 |          1        1.92       94.23
    1,042.9 |          1        1.92       96.15
      1,081 |          1        1.92       98.08
   1,187.77 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

by Jean Roth , jroth@nber.org , 14 Mar 2018