Mathematics
Sheet1
| Year | Jan | Feb | March | April | May | June | July | August | Sept | Oct | Nov | Dec | Ave |
| 2016 | 1.4 | 1 | 0.9 | 1.1 | 1 | 1 | 0.8 | 1.1 | 1.5 | 1.6 | 1.7 | 2.1 | 1.3 |
| 2017 | 2.5 | 2.7 | 2.4 | 2.2 | 1.9 | 1.6 | 1.7 | 1.9 | 2.2 | 2 | 2.2 | 2.1 | 2.1 |
| 2018 | 2.1 | 2.2 | 2.4 | 2.5 | 2.8 | 2.9 | 2.9 | 2.7 | 2.3 | 2.5 | 2.2 | 1.9 | 2.4 |
| 2019 | 1.6 | 1.5 | 1.9 | 2 | 1.8 | 1.6 | 1.8 | 1.7 | 1.7 | 1.8 | 2.1 | 2.3 | 1.8 |
| 2020 | 2.5 | 2.3 | 1.5 | 0.3 | 0.1 | 0.6 | 1 | ||||||
| year | rn | 1+rn | |||||||||||
| 1 | 0.008 | 1.008 | |||||||||||
| 2 | 0.017 | 1.017 | |||||||||||
| 3 | 0.029 | 1.029 | |||||||||||
| 4 | 0.018 | 1.018 | |||||||||||
| 5 | 0.001 | 1.001 | |||||||||||
| Geometric Mean | 1.46% |