Frequencies for ami8aipstr variable in hvbp_ami_02_07_2013 dataset :

     AMI-8a |
Improvement |
     Points |      Freq.     Percent        Cum.
------------+-----------------------------------
 0 out of 9 |        462       15.48       15.48
 1 out of 9 |         38        1.27       16.76
 2 out of 9 |         49        1.64       18.40
 3 out of 9 |         42        1.41       19.81
 4 out of 9 |         56        1.88       21.68
 5 out of 9 |         76        2.55       24.23
 6 out of 9 |         68        2.28       26.51
 7 out of 9 |         80        2.68       29.19
 8 out of 9 |         48        1.61       30.80
 9 out of 9 |        315       10.56       41.35
        N/A |      1,750       58.65      100.00
------------+-----------------------------------
      Total |      2,984      100.00

by Jean Roth , jroth@nber.org , 16 Nov 2016