The Consumer Prices Index (CPI) increases from 150 to 159 over a twelve-month period. This indicates that
the cost of living has risen by exactly 9%9\%9% for all individual households.
the average price level of goods and services in the basket has increased by 6%6\%6%.
the rate of inflation over the twelve-month period is 9%9\%9%.
the price of every item in the consumer basket has risen by 6%6\%6%.
