The CPI in September 2021 was 105.65(2016=100) which increased 0.20% from the preceding month, and rose 2.73% compared with the same month of 2020.

Introduce percent change compared with the preceding month of 7 categories as follow:

1.Food group increased 0.36%.

2.Clothing group decreased -1.97％.

3.Housing group increased 0.24%.

4.Transportation & Communication group decreased 0.34%.

5.Health group increased 0.31%.

6.Education & Entertainment group increased 0.77%.

7.Miscellaneous group decreased -0.20%.

The CCI was 127.25(2016=100) which increased 0.24% from the preceding month, and rose 14.05% compared with the same month of 2020.