Eurostat regularly compares the different inflation rates for frequent, out-of-pocket purchases such as food and books, with less-frequent purchases such as telephone bills and health insurance. As the chart shows, more frequently purchased smaller items usually show a higher inflation rate than the overall rate, and less frequent purchases show lower price inflation. Because the frequently purchased items make up around half of all purchases in terms of number – but not in terms of total expenditure – they contribute much to our perceptions of inflation.
Source: Eurostat