Frequencies for partbl2yearsimag variable in dapstate2009 dataset :

    Imaging |      Freq.     Percent        Cum.
------------+-----------------------------------
   548.8266 |          1        1.92        1.92
   576.4506 |          1        1.92        3.85
   590.9201 |          1        1.92        5.77
   648.0335 |          1        1.92        7.69
    658.671 |          1        1.92        9.62
   660.3644 |          1        1.92       11.54
   698.9434 |          1        1.92       13.46
   708.4846 |          1        1.92       15.38
   715.0498 |          1        1.92       17.31
   721.6813 |          1        1.92       19.23
   725.8105 |          1        1.92       21.15
   731.0552 |          1        1.92       23.08
   741.7425 |          1        1.92       25.00
   762.3056 |          1        1.92       26.92
   787.1953 |          1        1.92       28.85
   791.6037 |          1        1.92       30.77
   819.2376 |          1        1.92       32.69
   834.6814 |          1        1.92       34.62
   867.9474 |          1        1.92       36.54
   868.5682 |          1        1.92       38.46
   871.1441 |          1        1.92       40.38
   873.3807 |          1        1.92       42.31
   874.7192 |          1        1.92       44.23
   881.2264 |          1        1.92       46.15
   906.9987 |          1        1.92       48.08
   909.9212 |          1        1.92       50.00
   917.9076 |          1        1.92       51.92
     919.17 |          1        1.92       53.85
   934.9202 |          1        1.92       55.77
    939.357 |          1        1.92       57.69
   958.1561 |          1        1.92       59.62
   976.4271 |          1        1.92       61.54
   984.2011 |          1        1.92       63.46
   1,008.37 |          1        1.92       65.38
   1,024.85 |          1        1.92       67.31
   1,036.27 |          1        1.92       69.23
   1,046.74 |          1        1.92       71.15
   1,074.12 |          1        1.92       73.08
   1,095.81 |          1        1.92       75.00
   1,097.36 |          1        1.92       76.92
   1,134.15 |          1        1.92       78.85
   1,148.88 |          1        1.92       80.77
   1,166.58 |          1        1.92       82.69
   1,193.74 |          1        1.92       84.62
    1,295.4 |          1        1.92       86.54
   1,360.41 |          1        1.92       88.46
   1,445.55 |          1        1.92       90.38
   1,452.32 |          1        1.92       92.31
    1,460.6 |          1        1.92       94.23
   1,469.47 |          1        1.92       96.15
   1,499.64 |          1        1.92       98.08
   1,633.76 |          1        1.92      100.00
------------+-----------------------------------
      Total |         52      100.00

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