The estimated risk of home burglary and actual (attempted) burglary was measured over the period 2008-2011 in the Integral Safety Monitor (IVM). In 2012, the survey set-up of the IVM was improved and subsequently the name was changed into Safety Monitor (VM). As a result of the new set-up, systematic effects occur in the results (methodological breaks). In order to preserve the continuity of the most important variables, the IVM survey was again conducted simultaneously with the VM, but the sample population was limited to approximately 6 thousand. The correction factors are calculated and the results of the IVM for the period 2008-2011 are corrected to the level of the VM by means of these factors. So, the percentages presented in this article for that period are converted values.