Frequencies for ami7aap variable in hvbp_ami_02_18_2015 dataset :

       AMI-7a |
  Achievement |
       Points |      Freq.     Percent        Cum.
--------------+-----------------------------------
           1  |          1        0.03        0.03
Not Available |      3,083       99.97      100.00
--------------+-----------------------------------
        Total |      3,084      100.00

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