Frequencies for ami7aprstr variable in hvbp_ami_02_25_2014 dataset :

     AMI-7a |
Performance |
       Rate |      Freq.     Percent        Cum.
------------+-----------------------------------
     0.7692 |          1        0.04        0.04
     0.9000 |          2        0.07        0.11
     1.0000 |          1        0.04        0.15
        N/A |      2,724       99.85      100.00
------------+-----------------------------------
      Total |      2,728      100.00

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