WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000764624
<NAME> PREMIUM TOTAL RETURN - CLASS O

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<INVESTMENTS-AT-COST>                    2,249,828,328
<INVESTMENTS-AT-VALUE>                   2,545,540,829
<RECEIVABLES>                              202,999,800
<ASSETS-OTHER>                                   7,138
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                           2,748,547,767
<PAYABLE-FOR-SECURITIES>                    38,935,160
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                  164,716,707
<TOTAL-LIABILITIES>                        203,651,867
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                 2,090,115,757
<SHARES-COMMON-STOCK>                        3,321,324
<SHARES-COMMON-PRIOR>                        5,102,317
<ACCUMULATED-NII-CURRENT>                    7,790,038
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    150,069,581
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                   269,920,524
<NET-ASSETS>                             2,544,895,900
<DIVIDEND-INCOME>                           52,405,887
<INTEREST-INCOME>                           69,371,534
<OTHER-INCOME>                                       0
<EXPENSES-NET>                              49,312,417
<NET-INVESTMENT-INCOME>                     72,465,004
<REALIZED-GAINS-CURRENT>                   742,214,274
<APPREC-INCREASE-CURRENT>                (693,844,806)
<NET-CHANGE-FROM-OPS>                      121,032,472
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                    1,539,254
<DISTRIBUTIONS-OF-GAINS>                    12,236,774
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        110,823
<NUMBER-OF-SHARES-REDEEMED>                  2,548,374
<SHARES-REINVESTED>                            656,558
<NET-CHANGE-IN-ASSETS>                 (1,672,467,200)
<ACCUMULATED-NII-PRIOR>                      3,257,921
<ACCUMULATED-GAINS-PRIOR>                   73,920,269
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                       24,858,896
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                             49,312,417
<AVERAGE-NET-ASSETS>                        81,863,621
<PER-SHARE-NAV-BEGIN>                            21.28
<PER-SHARE-NII>                                   0.42
<PER-SHARE-GAIN-APPREC>                           0.51
<PER-SHARE-DIVIDEND>                              0.40
<PER-SHARE-DISTRIBUTIONS>                         3.86
<RETURNS-OF-CAPITAL>                              0.00
<PER-SHARE-NAV-END>                              17.95
<EXPENSE-RATIO>                                   1.60


</TABLE>