Month | Error (%) | Month | Error (%) |
Jan. | 2.78 | Jul. | 3.36 |
Feb. | 3.03 | Aug. | 2.47 |
Mar. | 2.84 | Sep. | 2.55 |
Apr. | 2.75 | Oct. | 3.51 |
May. | 3.32 | Nov. | 2.96 |
Jun. | 3.49 | Dec. | 3.28 |
Average error = 3.02% |