Frequencies for ami8aipstr variable in hvbp_ami_08_06_2015 dataset :

       AMI-8a |
  Improvement |
       Points |      Freq.     Percent        Cum.
--------------+-----------------------------------
   0 out of 9 |        633       20.71       20.71
   1 out of 9 |         43        1.41       22.11
   2 out of 9 |         36        1.18       23.29
   3 out of 9 |         60        1.96       25.25
   4 out of 9 |         60        1.96       27.22
   5 out of 9 |         75        2.45       29.67
   6 out of 9 |         67        2.19       31.86
   7 out of 9 |         63        2.06       33.92
   8 out of 9 |         38        1.24       35.17
   9 out of 9 |        306       10.01       45.18
Not Available |      1,676       54.82      100.00
--------------+-----------------------------------
        Total |      3,057      100.00

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