═════════╤══════╤══════╤══════╤══════╤══════╤══════╤══════╤══════╤══════╤══════ │1903. │1904. │1905. │1906. │1907. │1908. │1909. │1910. │1911. │1912. ─────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼────── Jan. │ $.273│ $.230│ $.293│ $.270│ $.306│ $.305│ $.310│ $.340│ $.270│ $.370 Feb. │ .258│ .251│ .325│ .278│ .328│ .326│ .300│ .300│ .260│ .300 Mar. │ .281│ .245│ .273│ .270│ .308│ .295│ .290│ .320│ .250│ .300 Apr. │ .259│ .238│ .291│ .220│ .300│ .286│ .280│ .310│ .210│ .310 May │ .208│ .197│ .227│ .198│ .238│ .238│ .250│ .280│ .220│ .280 June │ .211│ .175│ .200│ .199│ .231│ .230│ .260│ .270│ .220│ .250 July │ .196│ .171│ .200│ .203│ .245│ .220│ .260│ .280│ .250│ .250 Aug. │ .190│ .179│ .209│ .225│ .249│ .224│ .270│ .290│ .260│ .250 Sep. │ .206│ .194│ .209│ .244│ .281│ .239│ .300│ .300│ .260│ .300 Oct. │ .208│ .211│ .218│ .257│ .289│ .275│ .300│ .290│ .290│ .290 Nov. │ .230│ .250│ .235│ .275│ .263│ .294│ .310│ .310│ .330│ .330 Dec. │ .245│ .269│ .248│ .311│ .283│ .308│ .350│ .300│ .360│ .350 ─────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴────── (Since February, 1918, Chicago price has been used.) ═════════╤══════╤══════╤══════╤══════╤══════╤══════╤══════╤══════╤══════╤══════ │1913. │1914. │1915. │1916. │1917. │1918. │1919. │1920. │1921. │1922. ─────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼────── Jan. │ $.330│ $.320│ $.310│ $.310│ $.380│ $.490│ $.540│ │ │ Feb. │ .340│ .280│ .300│ .320│ .410│ .490│ .500│ │ │ Mar. │ .350│ .270│ .280│ .360│ .410│ .430│ .580│ │ │ Apr. │ .320│ .240│ .300│ .340│ .430│ .420│ .620│ │ │ May │ .280│ .260│ .270│ .290│ .390│ .420│ .570│ │ │ June │ .280│ .270│ .270│ .290│ .380│ .420│ .510│ │ │ July │ .260│ .270│ .260│ .280│ .380│ .430│ .510│ │ │ Aug. │ .260│ .290│ .250│ .300│ .400│ .450│ .530│ │ │ Sep. │ .310│ .290│ .250│ .330│ .430│ .550│ .570│ │ │ Oct. │ .300│ .300│ .280│ .350│ .430│ .560│ .640│ │ │ Nov. │ .320│ .330│ .310│ .390│ .440│ .630│ .690│ │ │ Dec. │ .340│ .330│ .330│ .390│ .480│ .670│ .680│ │ │ ─────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────