Frequencies for age_ref variable in fmli132 dataset :

    age_ref |      Freq.     Percent        Cum.
------------+-----------------------------------
         16 |          2        0.03        0.03
         17 |          5        0.07        0.10
         18 |         17        0.25        0.35
         19 |         30        0.44        0.80
         20 |         48        0.71        1.51
         21 |         71        1.05        2.56
         22 |         65        0.96        3.52
         23 |         73        1.08        4.60
         24 |         87        1.29        5.89
         25 |         88        1.30        7.19
         26 |        101        1.49        8.68
         27 |        110        1.63       10.31
         28 |        123        1.82       12.13
         29 |        108        1.60       13.72
         30 |        128        1.89       15.62
         31 |        120        1.77       17.39
         32 |        144        2.13       19.52
         33 |        106        1.57       21.09
         34 |        124        1.83       22.92
         35 |        109        1.61       24.53
         36 |         95        1.40       25.94
         37 |        108        1.60       27.54
         38 |        105        1.55       29.09
         39 |         93        1.38       30.46
         40 |        114        1.69       32.15
         41 |        103        1.52       33.67
         42 |        133        1.97       35.64
         43 |        137        2.03       37.67
         44 |        100        1.48       39.15
         45 |        130        1.92       41.07
         46 |        133        1.97       43.03
         47 |        126        1.86       44.90
         48 |        122        1.80       46.70
         49 |        122        1.80       48.51
         50 |        143        2.11       50.62
         51 |        134        1.98       52.60
         52 |        137        2.03       54.63
         53 |        143        2.11       56.74
         54 |        117        1.73       58.47
         55 |        163        2.41       60.88
         56 |        139        2.06       62.94
         57 |        131        1.94       64.88
         58 |        125        1.85       66.73
         59 |        110        1.63       68.35
         60 |        127        1.88       70.23
         61 |         68        1.01       71.24
         62 |        153        2.26       73.50
         63 |        135        2.00       75.50
         64 |         78        1.15       76.65
         65 |        150        2.22       78.87
         66 |        124        1.83       80.70
         67 |         77        1.14       81.84
         68 |         87        1.29       83.13
         69 |         85        1.26       84.38
         70 |         92        1.36       85.74
         71 |         70        1.04       86.78
         72 |         73        1.08       87.86
         73 |         73        1.08       88.94
         74 |         66        0.98       89.91
         75 |         70        1.04       90.95
         76 |         59        0.87       91.82
         77 |         57        0.84       92.66
         78 |         46        0.68       93.35
         79 |         29        0.43       93.77
         80 |         50        0.74       94.51
         81 |         43        0.64       95.15
         82 |         52        0.77       95.92
         87 |        276        4.08      100.00
------------+-----------------------------------
      Total |      6,762      100.00

by Jean Roth , jroth@nber.org , 17 Mar 2016