Some filings were filed in the SERFF system under the designation “any size group.” Further examination showed that some but not all of the business covered in these filings was in the small group market. Following discussion with ASPE and analysis by the NORC team, “any size group” filings were only included in the study if they were submitted by a sampled carrier but no other data (i.e. small grouponly filings) from that carrier’s business in the given state and year were available. Because most “any size group” filings did not separate reported enrollment figures into small group and large group components, enrollment data for these observations were considered missing. As a result of this procedure, 53 “any size group” filings were incorporated in our analysis.