how much has rpi increased?
RPI inflation rate in the United Kingdom 1949-2019 The inflation rate for the Retail Price Index (RPI) in the United Kingdom was 2.6 percent in 2019. Between 1949 and 2019 the inflation rate of the Retail Price Index fluctuated from a high of 24.2 percent in 1975 and a low of minus 0.5 percent in 2009.