According to Basketball Reference:
1984-85 - $550,000
1985-86 - $630,000
1986-87 - $737,500
1987-88 - $845,000
1988-89 - $2,000,000
1989-90 - $2,250,000
1990-91 - $2,500,000
1991-92 - $3,250,000
1992-93 - $4,000,000
1993-94 - $4,000,000
1994-95 - $3,850,000
1995-96 - $3,850,000
1996-97 - $30,140,000
1997-98 - $33,140,000