Production, as used in § 1221.100, means:

(a) for the purpose of establishing the initial Board in paragraphs (a), (b), (c), (d), and (e) of § 1221.100, the volume of grain sorghum produced during the last 5 crop years, excluding the high and low years, and

(b) For the purpose of reapportionment in paragraphs (e) and (f) of § 1221.100, the total assessments collected by the Board during the last 5 crop years, excluding the high and low years.