Minitab Portable Worksheet P1.1             199011 6 Release 7.1               .
%      3      1      7      0 Polluted                                         .
 2.129999924E+01 1.870000076E+01 2.300000000E+01 1.710000038E+01 1.679999924E+01
 2.089999962E+01 1.970000076E+01                                               .
%      3      2      5      0 Unpollut                                         .
 1.419999981E+01 1.829999924E+01 1.720000076E+01 1.839999962E+01 2.000000000E+01