Inflation Rate (CPI, annual variation in %)

Inflation means the overall rise in the CPI (CPI). This is a weighted average of the prices of various products. The set of products that make up the index depends on which products are considered representative of the common consumption basket. Therefore, according to the country's consumption habits and the majority of the population, the index includes various items. Some items may record price declines, but other items may increase, so the total value of CPI depends on the weight of each item for the entire item. Annual inflation rate represents the change rate of CPI compared with the same month of the previous year.

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The annual inflation rate of the CPI basket during September 2012 to September 2016 was about 03%. This means that the average price rose by about 1% per year. However, different CPI basket categories have different inflation rates. For example, the annual inflation rate (0.091% of the CPI index) for telephone hardware, calculators, and consumer information equipment category is -8%. A ratio of -8% means that this category is 8% cheaper per year, 8% higher quality, or both. A value of 0.091% indicates that the average annual expenditure of consumers in this category is 0.091% (the denominator includes housing and transportation expenses) according to the consumption expenditure survey. A related category of CPI basket is a wireless telephony program that accounts for 74% of the September 2016 index. From September 2012 to September 2016, the annual inflation rate is about -2.3%.

The inflation rate is calculated by the change in the overall price index (CPI). The CPI in 1814 was 14.2. Last year it was 16.3 years old in 1813. The National Bureau of Statistics uses the difference in CPI over the years to formally determine inflation. Negative inflation due to CPI below 1813 CPI (also called deflation) CPI of 1814

The most widely known inflation index is the Consumer Price Index (CPI), which is reported monthly by the Bureau of Labor Statistics. The CPI measures inflation by determining price fluctuations of hypothetical product packages purchased by typical households (food, housing, clothing, medical, home appliances, automobiles, etc.). The reference period for CPI is from 1982 to 1984, with an average of 100. The table of "Selected CPI value, 1950 - 2010" below shows the CPI value for the selected year. For example, the CPI value in 1950 was 24. This is a normal purchase of $ 1 from 1982 to 1984, which means that it will be $ 0.24 in 1950. Instead, in 2010 it will cost $ 2.18 to buy a typical item with the same value of $ 1. The difference indicates the effect of inflation. In fact, this is the rate of change in the price index.