| Other Years | |||||||||||||||||
| 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |||||||||
| 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | |||||||||
| Day | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1 | 1025.3 | 1005.5 | 1002.5 | 1026.1 | 1005.2 | 1008.6 | 1010.0 | 1015.6 | 1019.5 | 1027.5 | 1024.2 | 1022.4 |
| 2 | 1028.6 | 1006.2 | 1009.6 | 1021.7 | 1001.2 | 1007.5 | 1017.9 | 1011.3 | 1019.7 | 1022.2 | 1018.4 | 1019.6 |
| 3 | 1023.5 | 1009.7 | 1019.2 | 1018.1 | 996.9 | 1019.4 | 1017.4 | 1008.0 | 1018.4 | 1015.5 | 1011.0 | 1014.5 |
| 4 | 1030.2 | 1020.3 | 1032.1 | 1022.5 | 994.7 | 1019.7 | 1015.6 | 1011.7 | 1019.6 | 1004.7 | 1010.4 | 1024.4 |
| 5 | 1024.1 | 1025.5 | 1037.6 | 1025.4 | 992.0 | 1017.2 | 1016.6 | 1008.6 | 1023.1 | 996.5 | 1008.1 | 1017.9 |
| 6 | 1020.5 | 1027.9 | 1030.7 | 1030.1 | 1006.5 | 1025.3 | 1014.4 | 1011.1 | 1027.8 | 996.6 | 1012.2 | 1014.5 |
| 7 | 1021.7 | 1033.8 | 1023.1 | 1033.8 | 1014.6 | 1030.9 | 1010.0 | 1017.7 | 1028.8 | 1011.2 | 1016.8 | 1016.0 |
| 8 | 1021.8 | 1038.4 | 1022.8 | 1029.3 | 1010.1 | 1031.5 | 1016.2 | 1022.5 | 1023.7 | 1019.2 | 1017.3 | 1022.0 |
| 9 | 1022.8 | 1034.2 | 1022.6 | 1022.9 | 1016.4 | 1029.9 | 1022.7 | 1020.0 | 1018.0 | 1019.2 | 1021.2 | 1029.6 |
| 10 | 1019.7 | 1027.1 | 1027.7 | 1015.4 | 1018.9 | 1024.2 | 1017.4 | 1016.2 | 1015.2 | 1015.3 | 1021.7 | 1023.9 |
| 11 | 1024.1 | 1021.0 | 1023.6 | 1018.1 | 1016.6 | 1014.4 | 1017.5 | 1019.2 | 1008.2 | 1014.5 | 1020.1 | 1022.2 |
| 12 | 1011.4 | 1012.7 | 1019.9 | 1025.1 | 1019.4 | 1008.3 | 1017.1 | 1019.0 | 1005.3 | 1019.3 | 1017.7 | 1018.8 |
| 13 | 1003.3 | 999.8 | 1023.7 | 1028.4 | 1016.1 | 1010.3 | 1016.1 | 1012.9 | 999.7 | 1023.4 | 1022.8 | 1013.5 |
| 14 | 997.3 | 1001.5 | 1028.4 | 1023.7 | 1009.8 | 1014.5 | 1016.7 | 1009.6 | 993.6 | 1023.4 | 1022.5 | 1009.0 |
| 15 | 992.0 | 1010.1 | 1025.5 | 1016.7 | 1019.2 | 1020.5 | 1017.4 | 1013.9 | 994.6 | 1021.4 | 1013.2 | 1009.3 |
| 16 | 1005.9 | 1019.1 | 1020.1 | 1012.1 | 1026.2 | 1025.4 | 1012.6 | 1016.5 | 990.0 | 1021.7 | 1007.4 | 1014.9 |
| 17 | 1012.2 | 1033.8 | 1022.7 | 1016.0 | 1023.2 | 1025.0 | 1012.2 | 1017.0 | 999.7 | 1019.5 | 1008.4 | 1013.5 |
| 18 | 1013.0 | 1033.2 | 1029.3 | 1021.2 | 1011.7 | 1022.7 | 1014.3 | 1016.1 | 1012.7 | 1019.3 | 1013.4 | 1013.4 |
| 19 | 1011.9 | 1018.7 | 1030.6 | 1021.4 | 1010.0 | 1023.6 | 1010.3 | 1014.3 | 1023.1 | 1023.6 | 1014.3 | 1005.5 |
| 20 | 1003.3 | 1006.6 | 1026.4 | 1026.1 | 1019.5 | 1022.4 | 1009.1 | 1016.5 | 1022.1 | 1026.8 | 1011.9 | 1007.2 |
| 21 | 1004.9 | 1005.9 | 1024.4 | 1030.0 | 1026.8 | 1018.7 | 1012.0 | 1016.1 | 1011.4 | 1021.1 | 1012.7 | 1013.4 |
| 22 | 1017.3 | 1002.0 | 1023.1 | 1025.1 | 1026.4 | 1013.8 | 1015.9 | 1009.7 | 1007.1 | 1019.1 | 1016.3 | 1011.4 |
| 23 | 1021.6 | 995.6 | 1016.5 | 1017.6 | 1023.9 | 1017.7 | 1015.7 | 1001.2 | 1012.7 | 1017.1 | 1020.8 | 1014.2 |
| 24 | 1026.9 | 1007.0 | 1012.2 | 1010.0 | 1021.2 | 1019.9 | 1008.5 | 1002.7 | 1015.7 | 1016.0 | 1015.5 | 1010.6 |
| 25 | 1029.1 | 1015.8 | 1008.5 | 1004.6 | 1021.2 | 1018.9 | 1015.2 | 1005.0 | 1022.2 | 1018.5 | 1017.4 | 1015.3 |
| 26 | 1027.2 | 1015.4 | 1009.0 | 1008.0 | 1024.7 | 1016.7 | 1006.0 | 1001.3 | 1025.6 | 1008.1 | 1020.5 | 1014.7 |
| 27 | 1025.1 | 1016.6 | 1018.0 | 1012.7 | 1022.5 | 1019.9 | 1004.4 | 1006.9 | 1029.0 | 1003.4 | 1012.9 | 1015.2 |
| 28 | 1011.2 | 1005.7 | 1014.3 | 1017.1 | 1016.4 | 1018.7 | 1009.8 | 1014.3 | 1030.6 | 1003.0 | 1013.7 | 1007.1 |
| 29 | 993.8 | 1007.3 | 1013.1 | 1011.5 | 1020.4 | 1014.6 | 1017.3 | 1029.4 | 1006.0 | 1015.3 | 1011.0 | |
| 30 | 984.9 | 1010.2 | 1010.4 | 1010.7 | 1014.2 | 1019.4 | 1015.9 | 1028.0 | 1008.4 | 1019.5 | 1004.1 | |
| 31 | 994.4 | 1016.5 | 1009.7 | 1018.1 | 1015.5 | 1018.1 | 1009.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| High | 1034.3 | 1040.1 | 1039.5 | 1035.6 | 1029.7 | 1032.9 | 1024.1 | 1024.3 | 1031.8 | 1029.0 | 1027.8 | 1032.3 |
| Average | 1014.6 | 1016.1 | 1020.5 | 1019.9 | 1014.4 | 1019.3 | 1014.1 | 1012.9 | 1015.8 | 1015.4 | 1015.7 | 1014.8 |
| Low | 982.9 | 992.7 | 999.6 | 1003.0 | 984.4 | 1001.2 | 998.0 | 996.9 | 986.0 | 988.0 | 1002.7 | 1000.0 |
