The term of the loans made pursuant to paragraph (1) which are outstanding on the effective date of this paragraph may not exceed the 25-year period beginning on such date. The remaining obligation of such loans shall be paid in equal annual installments, commencing
June 1, 1991, except that for the first 3 payments, the payment shall be $215,000 each year. In addition, such payments (including the first 3 payments) may be reduced in any year by a credit not to exceed $60,000 annually. Such credit shall equal 100 percent of the market value of public service tickets determined at prevailing Foundation box office prices. Such credit shall be allowed only for tickets contributed to entities holding a status referred to in
section 501(c)(3) of title 26.