date,1961 to 1990 long-term average,1991 to 2020 long-term average,UK,UK trend 1836,1084.0,1162.9,1124.8,995.7 1837,1084.0,1162.9,909.1,993.9 1838,1084.0,1162.9,937.2,994.0 1839,1084.0,1162.9,1064.6,995.3 1840,1084.0,1162.9,889.3,995.3 1841,1084.0,1162.9,1121.2,995.6 1842,1084.0,1162.9,925.2,994.7 1843,1084.0,1162.9,1008.0,993.3 1844,1084.0,1162.9,828.8,991.3 1845,1084.0,1162.9,1024.1,990.7 1846,1084.0,1162.9,1059.4,990.9 1847,1084.0,1162.9,962.2,990.3 1848,1084.0,1162.9,1181.2,990.8 1849,1084.0,1162.9,986.9,989.7 1850,1084.0,1162.9,949.1,988.0 1851,1084.0,1162.9,904.2,987.2 1852,1084.0,1162.9,1253.0,988.5 1853,1084.0,1162.9,941.3,987.2 1854,1084.0,1162.9,902.1,986.9 1855,1084.0,1162.9,786.5,988.0 1856,1084.0,1162.9,932.3,989.9 1857,1084.0,1162.9,916.4,992.8 1858,1084.0,1162.9,876.6,998.1 1859,1084.0,1162.9,1041.9,1004.5 1860,1084.0,1162.9,1105.5,1009.9 1861,1084.0,1162.9,1056.2,1015.0 1862,1084.0,1162.9,1097.5,1020.5 1863,1084.0,1162.9,1085.2,1026.4 1864,1084.0,1162.9,908.4,1032.5 1865,1084.0,1162.9,972.6,1039.5 1866,1084.0,1162.9,1172.5,1046.6 1867,1084.0,1162.9,1022.6,1052.0 1868,1084.0,1162.9,1144.7,1059.4 1869,1084.0,1162.9,1066.3,1065.8 1870,1084.0,1162.9,853.8,1071.2 1871,1084.0,1162.9,979.8,1077.1 1872,1084.0,1162.9,1439.1,1083.3 1873,1084.0,1162.9,997.6,1084.3 1874,1084.0,1162.9,1048.4,1084.8 1875,1084.0,1162.9,1093.3,1084.7 1876,1084.0,1162.9,1148.3,1084.4 1877,1084.0,1162.9,1324.4,1083.4 1878,1084.0,1162.9,1040.2,1079.9 1879,1084.0,1162.9,1018.7,1076.2 1880,1084.0,1162.9,1035.1,1072.3 1881,1084.0,1162.9,1045.5,1067.9 1882,1084.0,1162.9,1249.5,1063.7 1883,1084.0,1162.9,1120.6,1057.6 1884,1084.0,1162.9,1019.2,1051.2 1885,1084.0,1162.9,1013.9,1045.0 1886,1084.0,1162.9,1095.0,1038.6 1887,1084.0,1162.9,806.5,1031.0 1888,1084.0,1162.9,994.2,1026.6 1889,1084.0,1162.9,931.5,1023.7 1890,1084.0,1162.9,1012.1,1021.5 1891,1084.0,1162.9,1109.8,1019.3 1892,1084.0,1162.9,978.4,1017.1 1893,1084.0,1162.9,941.1,1016.8 1894,1084.0,1162.9,1102.7,1017.0 1895,1084.0,1162.9,961.2,1016.5 1896,1084.0,1162.9,988.7,1017.2 1897,1084.0,1162.9,1037.1,1018.1 1898,1084.0,1162.9,1021.6,1020.9 1899,1084.0,1162.9,1018.3,1024.0 1900,1084.0,1162.9,1150.6,1027.5 1901,1084.0,1162.9,927.3,1029.9 1902,1084.0,1162.9,882.3,1034.2 1903,1084.0,1162.9,1345.9,1038.7 1904,1084.0,1162.9,963.8,1040.7 1905,1084.0,1162.9,931.4,1042.8 1906,1084.0,1162.9,1070.4,1046.1 1907,1084.0,1162.9,1042.6,1048.7 1908,1084.0,1162.9,977.4,1051.1 1909,1084.0,1162.9,1035.4,1054.2 1910,1084.0,1162.9,1128.1,1058.3 1911,1084.0,1162.9,1010.7,1061.3 1912,1084.0,1162.9,1218.5,1064.5 1913,1084.0,1162.9,1010.9,1066.8 1914,1084.0,1162.9,1101.5,1070.2 1915,1084.0,1162.9,1049.1,1073.0 1916,1084.0,1162.9,1178.6,1076.7 1917,1084.0,1162.9,1021.3,1079.1 1918,1084.0,1162.9,1112.2,1081.1 1919,1084.0,1162.9,1015.5,1082.8 1920,1084.0,1162.9,1127.9,1084.6 1921,1084.0,1162.9,891.9,1085.5 1922,1084.0,1162.9,1031.7,1087.9 1923,1084.0,1162.9,1203.5,1090.3 1924,1084.0,1162.9,1162.6,1091.5 1925,1084.0,1162.9,1057.2,1091.8 1926,1084.0,1162.9,1083.5,1092.4 1927,1084.0,1162.9,1198.9,1091.9 1928,1084.0,1162.9,1240.3,1090.7 1929,1084.0,1162.9,1048.6,1087.7 1930,1084.0,1162.9,1167.6,1085.1 1931,1084.0,1162.9,1106.2,1081.3 1932,1084.0,1162.9,1086.5,1077.9 1933,1084.0,1162.9,831.3,1073.7 1934,1084.0,1162.9,1062.8,1072.4 1935,1084.0,1162.9,1134.0,1070.8 1936,1084.0,1162.9,1054.3,1069.3 1937,1084.0,1162.9,1001.8,1067.7 1938,1084.0,1162.9,1178.4,1066.3 1939,1084.0,1162.9,1083.9,1063.9 1940,1084.0,1162.9,1029.7,1062.8 1941,1084.0,1162.9,935.8,1061.1 1942,1084.0,1162.9,1020.2,1060.5 1943,1084.0,1162.9,1066.8,1061.0 1944,1084.0,1162.9,1077.3,1062.6 1945,1084.0,1162.9,998.5,1063.6 1946,1084.0,1162.9,1148.1,1066.2 1947,1084.0,1162.9,974.9,1068.4 1948,1084.0,1162.9,1193.4,1071.3 1949,1084.0,1162.9,1031.4,1071.8 1950,1084.0,1162.9,1188.2,1071.9 1951,1084.0,1162.9,1185.6,1071.5 1952,1084.0,1162.9,1000.0,1070.5 1953,1084.0,1162.9,937.8,1070.5 1954,1084.0,1162.9,1295.3,1072.2 1955,1084.0,1162.9,881.7,1071.5 1956,1084.0,1162.9,1031.0,1072.7 1957,1084.0,1162.9,1089.8,1072.9 1958,1084.0,1162.9,1118.7,1072.4 1959,1084.0,1162.9,987.4,1070.8 1960,1084.0,1162.9,1200.9,1070.5 1961,1084.0,1162.9,1082.0,1068.1 1962,1084.0,1162.9,1030.9,1065.4 1963,1084.0,1162.9,1000.9,1062.8 1964,1084.0,1162.9,918.6,1061.4 1965,1084.0,1162.9,1138.8,1061.6 1966,1084.0,1162.9,1187.8,1062.1 1967,1084.0,1162.9,1204.2,1062.5 1968,1084.0,1162.9,1071.9,1062.0 1969,1084.0,1162.9,1002.4,1061.0 1970,1084.0,1162.9,1120.5,1061.6 1971,1084.0,1162.9,935.3,1061.1 1972,1084.0,1162.9,986.4,1062.3 1973,1084.0,1162.9,928.8,1064.3 1974,1084.0,1162.9,1180.7,1068.1 1975,1084.0,1162.9,921.4,1070.5 1976,1084.0,1162.9,974.1,1075.4 1977,1084.0,1162.9,1103.5,1081.0 1978,1084.0,1162.9,1062.2,1086.8 1979,1084.0,1162.9,1171.5,1092.6 1980,1084.0,1162.9,1155.2,1097.6 1981,1084.0,1162.9,1181.7,1102.0 1982,1084.0,1162.9,1199.1,1105.4 1983,1084.0,1162.9,1085.0,1108.1 1984,1084.0,1162.9,1090.1,1111.7 1985,1084.0,1162.9,1102.2,1115.7 1986,1084.0,1162.9,1213.4,1121.0 1987,1084.0,1162.9,1060.8,1124.3 1988,1084.0,1162.9,1160.9,1128.3 1989,1084.0,1162.9,1045.1,1130.1 1990,1084.0,1162.9,1203.7,1133.2 1991,1084.0,1162.9,1024.7,1134.5 1992,1084.0,1162.9,1217.4,1136.3 1993,1084.0,1162.9,1149.7,1137.4 1994,1084.0,1162.9,1216.5,1138.8 1995,1084.0,1162.9,1050.3,1140.0 1996,1084.0,1162.9,935.2,1141.1 1997,1084.0,1162.9,1048.7,1144.4 1998,1084.0,1162.9,1298.4,1149.6 1999,1084.0,1162.9,1271.8,1152.8 2000,1084.0,1162.9,1372.5,1155.4 2001,1084.0,1162.9,1049.3,1156.3 2002,1084.0,1162.9,1280.3,1158.1 2003,1084.0,1162.9,900.1,1158.2 2004,1084.0,1162.9,1208.9,1160.2 2005,1084.0,1162.9,1079.7,1161.5 2006,1084.0,1162.9,1173.2,1164.6 2007,1084.0,1162.9,1195.7,1166.6 2008,1084.0,1162.9,1293.2,1168.4 2009,1084.0,1162.9,1208.1,1169.7 2010,1084.0,1162.9,945.4,1171.1 2011,1084.0,1162.9,1162.6,1173.5 2012,1084.0,1162.9,1329.6,1174.7 2013,1084.0,1162.9,1084.0,1173.5 2014,1084.0,1162.9,1292.8,1174.2 2015,1084.0,1162.9,1265.3,1174.7 2016,1084.0,1162.9,1096.5,1175.0 2017,1084.0,1162.9,1118.4,1176.0 2018,1084.0,1162.9,1053.5,1178.0 2019,1084.0,1162.9,1232.2,1178.8 2020,1084.0,1162.9,1333.8,1179.4 2021,1084.0,1162.9,1104.2,1178.7