PROC MEANS displays the default statistics for all the observations (_TYPE_=0) and the four class levels of the Status and Year combination (Status=1, Year=97; Status=1, Year=98; Status=2, Year=97; Status=2, Year=98).

          Final Exam Grades for Student Status and Year of Graduation          1

                              The MEANS Procedure

                           Analysis Variable : Score 
 
     N
   Obs     N            Mean         Std Dev         Minimum         Maximum
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    10    10          86.000           4.714          78.000          92.000
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                          Analysis Variable : Score 
 
                 N
 Status  Year  Obs   N          Mean       Std Dev       Minimum       Maximum
 -----------------------------------------------------------------------------
 1       97      3   3        84.667         6.506        78.000        91.000

         98      3   3        88.333         4.041        84.000        92.000

 2       97      3   3        86.667         4.163        82.000        90.000

         98      1   1        81.000          .           81.000        81.000
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