The clusters created by the use of statistical clustering do not match the three rate areas identified in earlier studies (A, B, C). Thus, for the final report we analyzed the 2020 price data by three rate areas as was done in the past (a similar strategy was used for the 2014 through 2018 studies). As noted below, the analyses further documented that provider changes in pricing practices made the three rate areas no longer a valid representation of market prices. But, analyzing data by the three rate areas allowed us to compare 2020 market prices with maximum payment rates currently used by the Oregon Department of Human Services (ODHS). This supplemental document was produced for ODHS's use in making the transition from geographically grouping prices based on the previous three rate areas to grouping prices in the clusters that appear to better represent the current market. Specifically, this supplemental document presents the 2020 findings using the same three rate areas for all three types of care to geographically group prices by zip code. (author abstract)