You decide to revalue three contents insurance losses to the midpoint of an annual policy that will incept on 1 June 2013 by using the consumer price index (CPI).

The losses occurred in the United Kingdom on September 2010, March 2011 and February 2012 and the amounts are £1500, £3400, and £2200, respectively. On the website of the Office of National Statistics, you find the following values of the CPI.