Here is the data for CPI index for Australia, for all groups. Quarters CPI Index Sep-2022 128.4 Dec-2022 130.8 Mar-2023 132.6 Jun-2023 133.7 Sep-2023 135.3 The series ID is A2325846C from Sep-2022 to the last available estimate. The annualized inflation for Sep-2022 and the year on year for Sept 2023 are: Question 9Answer a. 7.4%; 5.4% b. 7.3% ; 7.4% c. 7.8%; 3.24% d. 7.3%; 4.89%