(A) The United States Postal Service shall pay into such Fund
(i) $5,400,000,000, not later than September 30, 2007;
(ii) $5,600,000,000, not later than September 30, 2008;
(iii) $5,400,000,000, not later than September 30, 2009;
(iv) $5,500,000,000, not later than September 30, 2010;
(v) $5,500,000,000, not later than September 30, 2011;
(vi) $5,600,000,000, not later than September 30, 2012;
(vii) $5,600,000,000, not later than September 30, 2013;
(viii) $5,700,000,000, not later than September 30, 2014;
(ix) $5,700,000,000, not later than September 30, 2015; and
(x) $5,800,000,000, not later than September 30, 2016.
(B) Not later than September 30, 2017, and by September 30 of each succeeding year, the United States Postal Service shall pay into such Fund the sum of
(i) the net present value computed under paragraph (1); and
(ii) any annual installment computed under paragraph (2)(B).