| 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 | 988.8 | 991.3 | 1003.5 | 1006.4 | 1012.9 | 1023.4 | 1017.9 | 1008.1 | 1023.5 | 1024.5 | 1010.2 | 1013.6 |
| 2 | 990.7 | 1002.6 | 991.4 | 999.5 | 1022.1 | 1019.0 | 1022.3 | 1004.7 | 1023.5 | 1026.2 | 1000.4 | 1020.0 |
| 3 | 992.9 | 995.4 | 988.9 | 1002.1 | 1026.6 | 1012.7 | 1019.6 | 1010.7 | 1022.1 | 1018.2 | 991.3 | 1021.9 |
| 4 | 992.8 | 983.4 | 1011.5 | 1007.5 | 1021.0 | 1009.0 | 1008.9 | 1015.5 | 1020.0 | 1014.4 | 995.4 | 1015.5 |
| 5 | 994.7 | 978.5 | 1017.5 | 1010.1 | 1010.6 | 1011.0 | 1004.0 | 1014.8 | 1018.6 | 1012.4 | 1005.7 | 1021.6 |
| 6 | 992.0 | 985.1 | 1020.7 | 1009.8 | 1006.5 | 1008.0 | 1009.2 | 1013.6 | 1016.9 | 998.9 | 998.6 | 1026.9 |
| 7 | 1002.0 | 987.5 | 1021.4 | 1009.5 | 1011.0 | 1010.6 | 1014.7 | 1015.8 | 1020.9 | 997.1 | 993.9 | 1021.9 |
| 8 | 1005.7 | 977.3 | 1020.8 | 1021.2 | 1011.1 | 1015.2 | 1019.3 | 1010.9 | 1018.6 | 993.8 | 996.8 | 1024.2 |
| 9 | 1006.4 | 984.8 | 1020.3 | 1015.6 | 1013.3 | 1015.5 | 1023.7 | 1006.6 | 1020.2 | 998.2 | 1001.7 | 1022.9 |
| 10 | 1011.8 | 994.2 | 1026.7 | 1023.7 | 1007.8 | 1017.2 | 1022.8 | 1001.1 | 1019.0 | 1006.7 | 996.9 | 1018.5 |
| 11 | 1016.3 | 994.5 | 1031.1 | 1022.3 | 1009.4 | 1025.4 | 1020.6 | 1010.7 | 1019.3 | 1009.7 | 987.6 | 1008.4 |
| 12 | 1009.8 | 992.3 | 1030.1 | 1021.4 | 1014.1 | 1028.6 | 1016.0 | 1009.7 | 1021.6 | 1007.7 | 991.7 | 999.8 |
| 13 | 1002.3 | 993.8 | 1028.8 | 1023.7 | 1022.9 | 1026.9 | 1013.5 | 1010.2 | 1023.6 | 1004.9 | 991.6 | 1010.3 |
| 14 | 1003.7 | 982.5 | 1029.8 | 1025.2 | 1032.3 | 1026.2 | 1016.1 | 1013.7 | 1019.8 | 1005.8 | 990.7 | 1011.6 |
| 15 | 996.0 | 991.9 | 1031.8 | 1025.8 | 1035.1 | 1027.7 | 1019.5 | 1019.9 | 1015.5 | 1000.4 | 994.2 | 1012.8 |
| 16 | 985.7 | 1003.4 | 1028.4 | 1023.6 | 1031.8 | 1027.7 | 1021.5 | 1022.1 | 1011.7 | 999.5 | 997.6 | 1013.9 |
| 17 | 987.4 | 1001.1 | 1023.6 | 1022.3 | 1023.5 | 1027.2 | 1016.4 | 1016.1 | 1008.1 | 1003.5 | 1001.5 | 1011.8 |
| 18 | 985.2 | 1008.0 | 1022.3 | 1020.5 | 1011.3 | 1026.7 | 1010.1 | 1014.5 | 1006.6 | 1005.6 | 1005.8 | 1014.0 |
| 19 | 994.6 | 1008.2 | 1021.8 | 1016.0 | 1002.0 | 1023.9 | 1009.8 | 1016.9 | 1010.1 | 1013.9 | 1013.1 | 1019.3 |
| 20 | 1005.5 | 1001.1 | 1010.6 | 1006.0 | 1005.4 | 1022.0 | 1014.5 | 1019.4 | 1016.8 | 1014.7 | 1018.2 | 1029.6 |
| 21 | 1005.3 | 1004.4 | 1004.6 | 1002.6 | 1005.8 | 1020.8 | 1021.4 | 1017.0 | 1023.5 | 1016.8 | 1011.7 | 1027.8 |
| 22 | 1007.9 | 1008.1 | 1002.6 | 1007.8 | 1000.0 | 1021.0 | 1023.3 | 1014.8 | 1025.6 | 1025.6 | 1011.1 | 1022.2 |
| 23 | 1009.7 | 1003.8 | 1011.2 | 1013.2 | 1003.0 | 1022.4 | 1020.2 | 1018.5 | 1021.1 | 1019.4 | 1018.8 | 1018.0 |
| 24 | 1012.8 | 1006.6 | 1008.7 | 1016.8 | 1008.3 | 1020.6 | 1017.1 | 1015.6 | 1018.4 | 1014.9 | 1024.0 | 1020.5 |
| 25 | 1017.0 | 1001.1 | 1010.4 | 1007.3 | 1014.4 | 1016.5 | 1017.5 | 1005.4 | 1021.5 | 1018.4 | 1018.4 | 1030.1 |
| 26 | 1007.9 | 1011.1 | 1015.8 | 996.0 | 1018.0 | 1013.1 | 1019.0 | 1004.8 | 1024.2 | 1019.3 | 1009.7 | 1022.3 |
| 27 | 993.5 | 1003.3 | 1009.9 | 1001.2 | 1017.8 | 1011.9 | 1020.2 | 1008.9 | 1024.4 | 1015.3 | 999.2 | 1013.4 |
| 28 | 985.2 | 997.4 | 1009.7 | 1011.0 | 1016.1 | 1010.6 | 1019.0 | 1011.4 | 1020.4 | 1011.2 | 996.3 | 1026.8 |
| 29 | 992.7 | 1008.0 | 1012.1 | 1017.1 | 1014.4 | 1019.5 | 1014.8 | 1018.3 | 1012.6 | 1006.9 | 1039.4 | |
| 30 | 1001.4 | 1008.2 | 1011.9 | 1022.2 | 1015.5 | 1019.0 | 1019.7 | 1022.3 | 1014.1 | 1013.9 | 1036.2 | |
| 31 | 993.5 | 1009.5 | 1025.8 | 1015.7 | 1015.3 | 1011.6 | 1029.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| High | 1020.2 | 1016.2 | 1033.5 | 1027.7 | 1035.7 | 1029.5 | 1025.1 | 1024.7 | 1027.1 | 1028.4 | 1025.7 | 1041.3 |
| Average | 999.3 | 996.6 | 1015.1 | 1013.4 | 1015.2 | 1018.9 | 1016.9 | 1013.1 | 1018.8 | 1010.8 | 1003.2 | 1020.4 |
| Low | 979.5 | 964.6 | 976.9 | 992.8 | 998.1 | 1005.7 | 1001.5 | 992.6 | 1005.2 | 990.0 | 984.8 | 993.7 |
