Q50. During the past 30 days, on how many days
            did you have at least one drink of alcohol?
                     Weighted Column Percents
 ----------------------------------------------------------------
                           Total               Grade
                                  -------------------------------
                                    9th    10th    11th    12th
 ----------------------------------------------------------------
 0 days                      54.1    58.8    54.0    52.9    48.6
 1 or 2 days                 20.3    19.1    20.6    20.8    21.0
 3 to 5 days                 11.5     9.9    11.9    11.8    13.1
 6 to 9 days                  7.4     5.9     7.3     7.6     9.6
 10 to 19 days                5.2     4.9     4.8     5.5     5.9
 20 to 29 days                1.0      .9      .9     1.0     1.2
 All 30 days                   .5      .5      .5      .4      .6
 Female
   0 days                    53.6    56.4    52.9    52.9    51.4
   1 or 2 days               22.2    20.9    22.8    22.5    23.2
   3 to 5 days               11.9    10.9    12.8    11.6    12.6
   6 to 9 days                6.9     6.1     6.6     7.7     7.5
   10 to 19 days              4.4     4.6     4.0     4.5     4.5
   20 to 29 days               .8      .9      .8      .8      .8
   All 30 days                 .2      .2      .2      .1      .1
 Male
   0 days                    54.6    61.3    55.1    53.0    45.8
   1 or 2 days               18.2    17.2    18.4    19.0    18.7
   3 to 5 days               11.1     8.9    11.1    12.0    13.5
   6 to 9 days                8.0     5.7     8.0     7.5    11.9
   10 to 19 days              6.0     5.1     5.6     6.5     7.3
   20 to 29 days              1.2     1.0     1.0     1.2     1.7
   All 30 days                 .9      .8      .9      .7     1.1
 ----------------------------------------------------------------
                            Total N =
                              31,159

 
          Q50. During the past 30 days, on how many days
            did you have at least one drink of alcohol?
                      Unweighted Frequencies
 ----------------------------------------------------------------
                           Total               Grade
                                  -------------------------------
                                    9th    10th    11th    12th
 ----------------------------------------------------------------
 0 days                    16,844   5,449   4,650   3,777   2,968
 1 or 2 days                6,259   1,760   1,741   1,485   1,273
 3 to 5 days                3,584     922   1,025     845     792
 6 to 9 days                2,270     561     596     543     570
 10 to 19 days              1,684     475     436     402     371
 20 to 29 days                346     101      89      69      87
 All 30 days                  172      50      47      39      36
 Female
   0 days                   8,582   2,684   2,324   1,977   1,597
   1 or 2 days              3,507     983     978     822     724
   3 to 5 days              1,885     512     545     445     383
   6 to 9 days              1,083     298     279     268     238
   10 to 19 days              731     239     180     166     146
   20 to 29 days              131      48      33      25      25
   All 30 days                 32      12       8       6       6
 Male
   0 days                   8,262   2,765   2,326   1,800   1,371
   1 or 2 days              2,752     777     763     663     549
   3 to 5 days              1,699     410     480     400     409
   6 to 9 days              1,187     263     317     275     332
   10 to 19 days              953     236     256     236     225
   20 to 29 days              215      53      56      44      62
   All 30 days                140      38      39      33      30
 ----------------------------------------------------------------
                            Total N =
                              31,159