Quarter	Million Pounds
1918-01-01	89.4000
1918-04-01	106.600
1918-07-01	84.0000
1918-10-01	95.4000
1919-01-01	88.7000
1919-04-01	95.0000
1919-07-01	129.200
1919-10-01	140.000
1920-01-01	117.200
1920-04-01	121.400
1920-07-01	126.100
1920-10-01	120.500
1921-01-01	118.800
1921-04-01	118.900
1921-07-01	107.700
1921-10-01	137.500
1922-01-01	124.900
1922-04-01	70.2000
1922-07-01	102.600
1922-10-01	158.800
1923-01-01	155.100
1923-04-01	178.300
1923-07-01	154.600
1923-10-01	165.600
1924-01-01	177.600
1924-04-01	176.200
1924-07-01	139.900
1924-10-01	212.000
1925-01-01	229.500
1925-04-01	170.000
1925-07-01	146.300
1925-10-01	218.000
1926-01-01	194.600
1926-04-01	145.000
1926-07-01	174.100
1926-10-01	206.500
1927-01-01	202.200
1927-04-01	167.200
1927-07-01	169.300
1927-10-01	238.000
1928-01-01	223.800
1928-04-01	179.500
1928-07-01	141.900
1928-10-01	206.300
1929-01-01	202.400
1929-04-01	187.000
1929-07-01	192.000
1929-10-01	182.200
1930-01-01	146.000
1930-04-01	130.900
1930-07-01	108.200
1930-10-01	131.300
1931-01-01	118.400
1931-04-01	130.600
1931-07-01	141.200
1931-10-01	130.500
1932-01-01	99.8000
1932-04-01	67.3000
1932-07-01	68.5000
1932-10-01	91.0000
1933-01-01	79.6000
1933-04-01	79.0000
1933-07-01	113.400
1933-10-01	133.900
1934-01-01	97.5000
1934-04-01	98.0000
1934-07-01	85.0000
1934-10-01	90.3000
1935-01-01	111.800
1935-04-01	116.900
1935-07-01	116.700
1935-10-01	156.600
1936-01-01	132.100
1936-04-01	100.100
1936-07-01	91.8000
1936-10-01	131.900
1937-01-01	156.900
1937-04-01	206.500
1937-07-01	151.300
1937-10-01	150.400
1938-01-01	125.600
1938-04-01	77.5000
1938-07-01	98.4000
1938-10-01	139.100
1939-01-01	139.200
1939-04-01	124.800
1939-07-01	134.300
1939-10-01	166.200
1940-01-01	150.200
1940-04-01	128.400
1940-07-01	135.500
1940-10-01	192.200
1941-01-01	196.300
1941-04-01	183.300
1941-07-01	236.700
1941-10-01	251.800
1942-01-01	258.700
1942-04-01	241.000
1942-07-01	225.100
1942-10-01	235.400