<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000811869
<NAME> THE AAL MUTUAL FUNDS
<SERIES>
   <NUMBER> 072
   <NAME> THE AAL MID CAP STOCK FUND CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          APR-30-1999
<PERIOD-START>                             MAY-01-1998
<PERIOD-END>                               OCT-30-1998
<INVESTMENTS-AT-COST>                        545175425
<INVESTMENTS-AT-VALUE>                       549520397
<RECEIVABLES>                                  7864330
<ASSETS-OTHER>                                  211549
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                               557596276
<PAYABLE-FOR-SECURITIES>                       3795837
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1066213
<TOTAL-LIABILITIES>                            4862050
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     539041710
<SHARES-COMMON-STOCK>                          1059452
<SHARES-COMMON-PRIOR>                           858826
<ACCUMULATED-NII-CURRENT>                     (890040)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       10237584
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       4344972
<NET-ASSETS>                                  13369900
<DIVIDEND-INCOME>                              2519716
<INTEREST-INCOME>                               604122
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 4041700
<NET-INVESTMENT-INCOME>                       (917862)
<REALIZED-GAINS-CURRENT>                    (21123468)
<APPREC-INCREASE-CURRENT>                  (112822942)
<NET-CHANGE-FROM-OPS>                      (134864272)
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         237569
<NUMBER-OF-SHARES-REDEEMED>                    (36943)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                     (133465082)
<ACCUMULATED-NII-PRIOR>                          27822
<ACCUMULATED-GAINS-PRIOR>                     31361052
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          2031565
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                4041700
<AVERAGE-NET-ASSETS>                          13159054
<PER-SHARE-NAV-BEGIN>                            15.78
<PER-SHARE-NII>                                  (.09)
<PER-SHARE-GAIN-APPREC>                         (3.07)
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.62
<EXPENSE-RATIO>                                   2.48
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>