The Walt Disney Company has reported the following quarterly revenues (in billions of dollars) for its Parks & Resorts operating segment for fiscal years 1998 through 2002. Determine the quarterly seasonal indexes, then use these indexes to deseasonalize the original data.

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Quarter I II III IV 1998 $1.260 1.244 1.504 1.524 1999 1.434 1.408 1.711 1.553 2000 1.577 1.571 1.940 1.715 2001 1.729 1.650 1.946 1.684 2002 1.433 1.525 1.847 1.660