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YearMonthAverage monthly rate of change (%) during the latest 3 months
Composite Consumer Price IndexConsumer Price Index (A)Consumer Price Index (B)Consumer Price Index (C)
2016 Jun -0.3 -0.5 -0.2 -0.1
Jul +0.1 +0.1 +0.1 0.0
Aug +0.1 +0.1 +0.1 +0.1
Sep +0.2 +0.4 +0.2 +0.1
Oct +0.3 +0.4 +0.2 +0.2
Nov +0.3 +0.5 +0.3 +0.2
Dec +0.2 +0.2 +0.2 +0.2
2017 Jan +0.1 +0.1 +0.1 +0.1
Feb -0.1 -0.1 -0.1 0.0
Mar 0.0 0.0 0.0 +0.1
Apr +0.2 +0.2 +0.2 +0.2
May +0.3 +0.3 +0.3 +0.4
Jun +0.2 +0.2 +0.2 +0.2
Jul +0.1 +0.1 +0.1 0.0
Aug +0.1 +0.1 +0.1 0.0
Notes : '0.0'Denotes increase or decrease of less than 0.05%.
 The seasonally adjusted indices are subject to revision up to 3 years after original publication.
 Four series of Consumer Price Indices (CPIs) are compiled to reflect the impact of consumer price changes on households in different expenditure ranges.
 The CPI(A), CPI(B) and CPI(C) are compiled based on the expenditure patterns of households in the relatively low, medium and relatively high expenditure ranges. By aggregating the expenditure patterns of all households covered by the above three indices, a Composite CPI is also compiled to reflect the impact of consumer price changes on the household sector as a whole. The year-on-year rate of change in this index is generally taken to reflect overall consumer price inflation.
 The CPI(A), CPI(B) and CPI(C) respectively cover some 50%, 30% and 10% of households in Hong Kong. The average monthly household expenditures (in HK$) of these groups during the base period (i.e. October 2014 - September 2015) were $5,500 - $24,499, $24,500 - $44,499 and $44,500 - $89,999 respectively. Taking into account the impact of price changes since the base period, the monthly household expenditure ranges of the CPI(A), CPI(B) and CPI(C) adjusted to the price level of 2016 are broadly equivalent to $5,700 - $25,200, $25,200 - $45,700 and $45,700 - $92,300 respectively, and that of the Composite CPI is broadly equivalent to $5,700 - $92,300. The Composite CPI is compiled based on the expenditure patterns of all these households taken together.
 In calculating the average monthly rates of change during the latest 3 months in the seasonally adjusted CPIs, the new 2014/15-based CPIs are used as from the reference month of January 2015 onwards.
 With seasonal variations removed from the original series, the seasonally adjusted CPIs enable a more meaningful comparison of figures in consecutive months. Since the month-to-month change of the seasonally adjusted series still tends to fluctuate due to other irregular factors, the trend of the CPIs may be more clearly discerned by looking at the average monthly rates of change in the seasonally adjusted indices during the latest 3 months.
Source : Consumer Price Index Section,
Census and Statistics Department
(Enquiry telephone no. : 3903 7374
 Enquiry e-mail : cpi@censtatd.gov.hk)



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