In the monthly economic outlook survey of households carried out by INSEE, respondents are asked about their perception of inflation. From their responses regarding their perception of recent price changes a balance of opinion is calculated which, over a long period, appears to be strongly correlated to the consumer price index (or CPI). Since the start of the year in particular, more and more households say that prices in general have risen (balance of opinion changed from –39 points in December 2020 to –4 points in September 2021), linked to the rise in the CPI over the period (0.0% year-on-year in December 2020 to 2.1% year-on-year in September 2021). In September, this balance was at its highest since 2013, slightly above the high point reached at the end of 2018, also in a context linked to an increase in CPI as a result of a rise in energy prices. However, it is still very far below the levels reached in 2011-2012 and 2008.