The CPI in December 2021 was 105.41(2016=100) which decreased -0.44% from the preceding month, and rose 2.24% compared with the same month of 2020.

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

1.Food group decreased 0.50%.

2.Clothing group decreased 1.33％.

3.Housing group increased 0.14%.

4.Transportation & Communication group decreased -1.74%.

5.Health group decreased -0.31%.

6.Education & Entertainment group decreased -0.57%.

7.Miscellaneous group increased 0.31%.

The CCI was 128.72(2016=100) which decreased -0.09% from the preceding month, and rose 12.55% compared with the same month of 2020.