<TABLE> <S> <C><ARTICLE>    6<CIK>    0000811869<NAME>    The AAL Mu<SERIES>    <NAME>    The AAL Municipal Bond Fund Class A    <NUMBER>    31</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>                            467,249,246<INVESTMENTS-AT-VALUE>                           482,201,559<RECEIVABLES>                                      9,878,975<ASSETS-OTHER>                                     1,035,138<OTHER-ITEMS-ASSETS>                                       0<TOTAL-ASSETS>                                   493,115,672<PAYABLE-FOR-SECURITIES>                          10,094,688<SENIOR-LONG-TERM-DEBT>                                    0<OTHER-ITEMS-LIABILITIES>                          1,054,006<TOTAL-LIABILITIES>                               11,148,694<SENIOR-EQUITY>                                            0<PAID-IN-CAPITAL-COMMON>                         480,932,511<SHARES-COMMON-STOCK>                             43,896,837<SHARES-COMMON-PRIOR>                             44,163,117<ACCUMULATED-NII-CURRENT>                                  0<OVERDISTRIBUTION-NII>                                     0<ACCUMULATED-NET-GAINS>                         (13,917,846)<OVERDISTRIBUTION-GAINS>                                   0<ACCUM-APPREC-OR-DEPREC>                          14,952,313<NET-ASSETS>                                     473,272,150<DIVIDEND-INCOME>                                          0<INTEREST-INCOME>                                 13,979,069<OTHER-INCOME>                                             0<EXPENSES-NET>                                     1,875,878<NET-INVESTMENT-INCOME>                           12,103,191<REALIZED-GAINS-CURRENT>                         (2,061,867)<APPREC-INCREASE-CURRENT>                         17,098,475<NET-CHANGE-FROM-OPS>                             27,139,799<EQUALIZATION>                                             0<DISTRIBUTIONS-OF-INCOME>                       (11,920,487)<DISTRIBUTIONS-OF-GAINS>                                   0<DISTRIBUTIONS-OTHER>                                      0<NUMBER-OF-SHARES-SOLD>                            1,606,248<NUMBER-OF-SHARES-REDEEMED>                      (2,790,181)<SHARES-REINVESTED>                                  917,653<NET-CHANGE-IN-ASSETS>                            12,749,686<ACCUMULATED-NII-PRIOR>                                    0<ACCUMULATED-GAINS-PRIOR>                       (11,855,984)<OVERDISTRIB-NII-PRIOR>                                    0<OVERDIST-NET-GAINS-PRIOR>                                 0<GROSS-ADVISORY-FEES>                              1,074,467<INTEREST-EXPENSE>                                         0<GROSS-EXPENSE>                                    1,981,725<AVERAGE-NET-ASSETS>                             464,839,614<PER-SHARE-NAV-BEGIN>                                  10.45<PER-SHARE-NII>                                         0.27<PER-SHARE-GAIN-APPREC>                                 0.33<PER-SHARE-DIVIDEND>                                  (0.27)<PER-SHARE-DISTRIBUTIONS>                                  0<RETURNS-OF-CAPITAL>                                       0<PER-SHARE-NAV-END>                                    10.78<EXPENSE-RATIO>                                         0.77<FN></FN></TABLE>