With reference to Figure 1, explain how the Consumer Price Index (CPI) inflation rate is measured. Refer to the concept of weights in your answer.
| Month | Inflation Rate (%) |
|---|---|
| Jan 2023 | 10.1 |
| Feb 2023 | 10.4 |
| Mar 2023 | 10.1 |
| Apr 2023 | 8.7 |
| May 2023 | 8.7 |
| Jun 2023 | 7.9 |
| Jul 2023 | 6.8 |
| Aug 2023 | 6.7 |
| Sep 2023 | 6.7 |
| Oct 2023 | 4.6 |
| Nov 2023 | 3.9 |
| Dec 2023 | 4.0 |