"Figure 4: Breakdown of mean squared revisions between first published estimate and subsequent estimates","" "","" "","" "Notes","1. UM represents the proportion of the MSR due to the mean revision being different from zero. 2. UR represents the proportion of the MSR caused by systematic differences between estimates. 3. UD shows the proportion of the MSR that is caused by noise. 4. Components may not sum to 100 due to rounding." "Unit","%" "","" "","UM ","UR ","UD " "1st and 2nd Estimate","0.4","3.8","95.7" "1st and 3rd Estimate","1.5","0.1","98.4" "1st and 4th Estimate","1.5","25","73.5" "1st and 5th Estimate","1.3","24.7","74" "1st and 6th Estimate","2.1","25.2","72.7" "1st and 7th Estimate","0.7","22","77.3" "1st and 8th Estimate","0.7","21.6","77.7"