<TABLE> <S> <C><ARTICLE>    6<CIK>    0000811869<NAME>    The AAL Mu<SERIES>    <NAME>    The AAL Bond Institutional Index Fund    <NUMBER>    151</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>                             13,453,067<INVESTMENTS-AT-VALUE>                            13,699,240<RECEIVABLES>                                        282,712<ASSETS-OTHER>                                        38,132<OTHER-ITEMS-ASSETS>                                       0<TOTAL-ASSETS>                                    14,020,084<PAYABLE-FOR-SECURITIES>                             152,329<SENIOR-LONG-TERM-DEBT>                                    0<OTHER-ITEMS-LIABILITIES>                             65,070<TOTAL-LIABILITIES>                                  217,399<SENIOR-EQUITY>                                            0<PAID-IN-CAPITAL-COMMON>                          13,551,662<SHARES-COMMON-STOCK>                              1,354,989<SHARES-COMMON-PRIOR>                              1,111,115<ACCUMULATED-NII-CURRENT>                              5,092<OVERDISTRIBUTION-NII>                                     0<ACCUMULATED-NET-GAINS>                                (242)<OVERDISTRIBUTION-GAINS>                                   0<ACCUM-APPREC-OR-DEPREC>                             246,173<NET-ASSETS>                                      13,802,685<DIVIDEND-INCOME>                                          0<INTEREST-INCOME>                                    450,403<OTHER-INCOME>                                             0<EXPENSES-NET>                                        13,439<NET-INVESTMENT-INCOME>                              436,964<REALIZED-GAINS-CURRENT>                              12,370<APPREC-INCREASE-CURRENT>                            290,483<NET-CHANGE-FROM-OPS>                                739,817<EQUALIZATION>                                             0<DISTRIBUTIONS-OF-INCOME>                          (436,964)<DISTRIBUTIONS-OF-GAINS>                                   0<DISTRIBUTIONS-OTHER>                                      0<NUMBER-OF-SHARES-SOLD>                              203,342<NUMBER-OF-SHARES-REDEEMED>                          (2,306)<SHARES-REINVESTED>                                   42,838<NET-CHANGE-IN-ASSETS>                             2,748,705<ACCUMULATED-NII-PRIOR>                                5,092<ACCUMULATED-GAINS-PRIOR>                           (12,612)<OVERDISTRIB-NII-PRIOR>                                    0<OVERDIST-NET-GAINS-PRIOR>                                 0<GROSS-ADVISORY-FEES>                                 16,123<INTEREST-EXPENSE>                                         0<GROSS-EXPENSE>                                       68,898<AVERAGE-NET-ASSETS>                              12,645,840<PER-SHARE-NAV-BEGIN>                                   9.95<PER-SHARE-NII>                                         0.35<PER-SHARE-GAIN-APPREC>                                 0.24<PER-SHARE-DIVIDEND>                                  (0.35)<PER-SHARE-DISTRIBUTIONS>                                  0<RETURNS-OF-CAPITAL>                                       0<PER-SHARE-NAV-END>                                    10.19<EXPENSE-RATIO>                                          0.2<FN></FN></TABLE>