<TABLE> <S> <C><ARTICLE>    6<CIK>    0000811869<NAME>    The AAL Mu<SERIES>    <NAME>    The AAL Mid Cap Stock Fund Class B    <NUMBER>    72</SERIES><MULTIPLIER>    1<S>                                                      <C><PERIOD-TYPE>                                          6-MOS<PERIOD-START>                                   May-01-2000<FISCAL-YEAR-END>                                Apr-30-2001<PERIOD-END>                                     Oct-31-2000<INVESTMENTS-AT-COST>                            807,509,090<INVESTMENTS-AT-VALUE>                           943,883,730<RECEIVABLES>                                     14,643,526<ASSETS-OTHER>                                        52,094<OTHER-ITEMS-ASSETS>                                       0<TOTAL-ASSETS>                                   958,579,350<PAYABLE-FOR-SECURITIES>                           9,175,531<SENIOR-LONG-TERM-DEBT>                                    0<OTHER-ITEMS-LIABILITIES>                          1,580,346<TOTAL-LIABILITIES>                               10,755,877<SENIOR-EQUITY>                                            0<PAID-IN-CAPITAL-COMMON>                         650,774,325<SHARES-COMMON-STOCK>                              1,882,208<SHARES-COMMON-PRIOR>                              1,661,098<ACCUMULATED-NII-CURRENT>                              4,504<OVERDISTRIBUTION-NII>                                     0<ACCUMULATED-NET-GAINS>                          160,670,004<OVERDISTRIBUTION-GAINS>                                   0<ACCUM-APPREC-OR-DEPREC>                         136,374,640<NET-ASSETS>                                      34,152,027<DIVIDEND-INCOME>                                  3,210,940<INTEREST-INCOME>                                  2,090,867<OTHER-INCOME>                                             0<EXPENSES-NET>                                     5,297,303<NET-INVESTMENT-INCOME>                                4,504<REALIZED-GAINS-CURRENT>                          54,919,735<APPREC-INCREASE-CURRENT>                         47,590,527<NET-CHANGE-FROM-OPS>                            102,514,766<EQUALIZATION>                                             0<DISTRIBUTIONS-OF-INCOME>                                  0<DISTRIBUTIONS-OF-GAINS>                                   0<DISTRIBUTIONS-OTHER>                                      0<NUMBER-OF-SHARES-SOLD>                              270,104<NUMBER-OF-SHARES-REDEEMED>                         (48,994)<SHARES-REINVESTED>                                        0<NET-CHANGE-IN-ASSETS>                           145,432,383<ACCUMULATED-NII-PRIOR>                                    0<ACCUMULATED-GAINS-PRIOR>                        105,750,269<OVERDISTRIB-NII-PRIOR>                                    0<OVERDIST-NET-GAINS-PRIOR>                                 0<GROSS-ADVISORY-FEES>                              2,954,339<INTEREST-EXPENSE>                                         0<GROSS-EXPENSE>                                    5,306,659<AVERAGE-NET-ASSETS>                              30,898,309<PER-SHARE-NAV-BEGIN>                                   16.2<PER-SHARE-NII>                                       (0.09)<PER-SHARE-GAIN-APPREC>                                 2.03<PER-SHARE-DIVIDEND>                                       0<PER-SHARE-DISTRIBUTIONS>                                  0<RETURNS-OF-CAPITAL>                                       0<PER-SHARE-NAV-END>                                    18.14<EXPENSE-RATIO>                                         2.23<FN></FN></TABLE>