Q20. During the past 12 months, how many times
               were you in a physical fight in which
   you were injured and had to be treated by a doctor or nurse?
                     (Weighted Column Percents)
 ----------------------------------------------------------------
                           Total               Grade
                                  -------------------------------
                                    9th    10th    11th    12th
 ----------------------------------------------------------------
 0 times                     97.2    96.9    96.9    97.5    97.9
 1 time                       2.1     2.4     2.4     1.8     1.5
 2 or 3 times                  .4      .4      .5      .4      .3
 4 or 5 times                  .1      .1      .1      .1      .1
 6 or more times               .2      .2      .2      .1      .2
 Female
   0 times                   98.3    98.0    97.9    98.5    99.0
   1 time                     1.4     1.6     1.7     1.3      .7
   2 or 3 times                .2      .3      .3      .1      .2
   4 or 5 times                .0      .0      .0      .1      .0
   6 or more times             .1      .0      .1      .0      .1
 Male
   0 times                   96.1    95.7    95.9    96.4    96.8
   1 time                     2.8     3.2     3.1     2.4     2.2
   2 or 3 times                .6      .5      .8      .8      .5
   4 or 5 times                .2      .3      .1      .1      .2
   6 or more times             .3      .3      .2      .3      .2
 ----------------------------------------------------------------
                            Total N =
                              31,800

 
          Q20. During the past 12 months, how many times
               were you in a physical fight in which
   you were injured and had to be treated by a doctor or nurse?
                      (Unweighted Frequencies)
 ----------------------------------------------------------------
                           Total               Grade
                                  -------------------------------
                                    9th    10th    11th    12th
 ----------------------------------------------------------------
 0 times                   30,939   9,192   8,522   7,132   6,093
 1 time                       642     228     193     122      99
 2 or 3 times                 134      43      45      28      18
 4 or 5 times                  35      15       7       7       6
 6 or more times               50      19      12      10       9
 Female
   0 times                 15,934   4,749   4,323   3,728   3,134
   1 time                     217      78      66      46      27
   2 or 3 times                34      13      13       4       4
   4 or 5 times                 7       3       1       2       1
   6 or more times              9       2       5       0       2
 Male
   0 times                 15,005   4,443   4,199   3,404   2,959
   1 time                     425     150     127      76      72
   2 or 3 times               100      30      32      24      14
   4 or 5 times                28      12       6       5       5
   6 or more times             41      17       7      10       7
 ----------------------------------------------------------------
                            Total N =
                              31,800