Trends in Premiums in the Small Group and Individual Insurance Markets, 2008-2011. Data on Enrollment from Filings with State Insurance Departments


Over the years included in this study, the percentage of filings including enrollment data grew continuously (Table 11). In the individual market, this percentage increased from 50.1 percent in 2008 to 80.0 percent in 2011. In the small group market, corresponding figures increased from 83.5 percent to 92.9 percent. However, the nature and apparent quality of data were inconsistent throughout the study period, with carriers reporting a mix of contracts held and covered lives, and many reporting identical enrollment figures for different books of business.

Table 11: Number and Percentage of Filings with Enrollment Data, by Market and Year

  2008 2009 2010 2011† Total 2008-2011†
Number of Filings with Enrollment Data
Individual 183 348 408 357 1296
Small Group 116 150 227 287 780
Percentage of Filings with Enrollment Data
Individual 50.1% 64.4% 71.2% 80.0% 67.4%
Small Group 83.5% 85.7% 86.3% 92.9% 88.0%

† Data for 2011 are incomplete.

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