Year |
Jan. |
Feb. |
March |
April |
May |
June |
July |
Aug. |
Sept. |
Oct. |
Nov. |
Dec. |
Average |
2015 |
6.1272 |
6.1339 |
6.1507 |
6.1302 |
6.1143 |
6.1161 |
6.1167 |
6.3056 |
6.3691 |
6.3486 |
6.3666 |
6.4476 |
6.2288 |
2016 |
6.5527 |
6.5311 |
6.5064 |
6.4762 |
6.5315 |
6.5874 |
6.6774 |
6.6474 |
6.6715 |
6.7442 |
6.8375 |
6.9182 |
6.6425 |
2017 |
6.8918 |
6.8713 |
6.8932 |
6.8845 |
6.8827 |
6.8019 |
- |
- |
- |
- |
- |
- |
- |