Page 437 - NG2022_merged

W i 0 = n V i 0 : Weight in the constant base period (0);
V
 i 0
i =1
0
V : Consumer expenditure in the constant base period (0);
i
n: The number of items/item groups.

CPI is computed monthly by the following comparative bases: Base year,
previous month, same month of the last year, last December and periodical average
for every province/city directly under the central government.

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