"Figure 5: impact of adjusting for size changes in low-level aggregates for a single retailer: chocolate dessert pots ","" "UK, January 2019 to January 2021","" "","" "Notes","1. For the purposes of this report, we have received permission to use data from a single retailer to demonstrate the impact of different processing decisions on the resulting indices. The indices for this retailer are experimental and should not be compared to official measures of consumer price inflation. 2. We have used a GEKS-Törnqvist method with a 13-month movement splice for this analysis. " "Unit","Index, Jan 2019 = 100" "","" "","Size adjusted","No size adjustments" "Jan-19","100","100" "Feb-19","98.5513163","98.55130226" "Mar-19","98.59686586","98.59686586" "Apr-19","84.05598439","84.05597035" "May-19","89.55551061","89.55549657" "Jun-19","92.55343385","92.55342683" "Jul-19","84.37259874","84.37259874" "Aug-19","84.53608711","84.53603796" "Sep-19","82.88957034","82.88957034" "Oct-19","84.78084577","84.54175272" "Nov-19","90.67571517","88.25533335" "Dec-19","97.6102209","94.72082187" "Jan-20","91.61659995","89.19012426" "Feb-20","90.27129436","87.84751458" "Mar-20","93.20976027","90.46340566" "Apr-20","93.57791975","90.82372315" "May-20","88.49805604","85.73144001" "Jun-20","91.50191869","88.78569643" "Jul-20","92.05751376","89.33667195" "Aug-20","84.16257092","81.62465747" "Sep-20","86.51108301","83.93395258" "Oct-20","89.92840899","87.31028536" "Nov-20","91.81775375","89.1392882" "Dec-20","90.31171889","87.60583795" "Jan-21","94.13933489","91.29454465"