§ 1925.
(c)
Inflation percentage
For purposes of this section, the inflation percentage applicable to a fiscal year is the percentage (if any) by which—
(1)
the average of the Prices Paid By Farmers Index (as compiled by the National Agricultural Statistics Service of the Department of Agriculture) for the 12-month period ending on July 31 of the immediately preceding fiscal year; exceeds
(2)
the average of such index (as so defined) for the 12-month period that immediately precedes the 12-month period described in paragraph (1).
([Pub. L. 87–128, title III, § 305], Aug. 8, 1961, [75 Stat. 308]; [Pub. L. 91–620, § 1], Dec. 31, 1970, [84 Stat. 1862]; [Pub. L. 92–419, title I, § 103], Aug. 30, 1972, [86 Stat. 658]; [Pub. L. 91–524, title VIII, § 807], as added [Pub. L. 93–86, § 1(27)(B)], Aug. 10, 1973, [87 Stat. 237]; [Pub. L. 95–334, title I, § 103], Aug. 4, 1978, [92 Stat. 421]; [Pub. L. 102–554, § 3], Oct. 28, 1992, [106 Stat. 4142]; [Pub. L. 105–277, div. A, § 101(a) [title VIII, § 806(a)]], Oct. 21, 1998, [112 Stat. 2681], 2681–39; [Pub. L. 110–234, title V, § 5003], May 22, 2008, [122 Stat. 1144]; [Pub. L. 110–246, § 4(a)], title V, § 5003, June 18, 2008, [122 Stat. 1664], 1905; [Pub. L. 115–334, title V, § 5103], Dec. 20, 2018, [132 Stat. 4669].)