such plans to their workers. Large firms were more likely to offer a high-deductible plan (18%), but enrollment was higher in small firms (8% of covered workers, versus 4% in larger firms). As of 2012, these numbers had increased. Approximately 31% of firms offering health insurance offered an HSA (26%) or an HRA (5%) option. Large firms (38%) were somewhat more likely than small (31%) firms to offer such options. 11% of covered workers were in HSAs, while 8% were in HRAs. In small companies, 24% were in high-deductible health plans vs 17% in larger firms. A survey of health insurers performed by America's Health Insurance Plans (AHIP) found that 4.5 million Americans were covered by HSA-qualified health plans as of January 2007. Of those, 3.4 million were covered through employer-sponsored plans, and 1.1 million were covered by individually purchased HSA-qualified plans. This represented an increase of 1.3 million since January 2006. In the individual market, 25% of new purchasers bought HSA-qualified plans. HSA-qualified plans represented 17% of new policies sold in the small group market and 8% of new policies sold in the large group market. A follow-up survey by AHIP reported that the number of Americans covered by HSA-qualified plans had grown to 6.1 million as of January 2008 (4.6 million through employer-sponsored plans and 1.5 million covered by individually purchased HSA-qualified plans). HSA-qualified plans represented 27% of new purchases in the individual market, 31% of new enrollment in the small group market and 6% of new enrollment in the large group market. In January 2008, market research firm Celent moderated its earlier projections, citing the HSA market's "disappointing early showing," and projected 12.5 million accounts by 2012. A survey published by AHIP in May 2009 found that 8 million people were covered by HSA/High-Deductible health plans in January 2009. Of them, 1.8 million were covered by individual policies and approximately 6.2 million were covered by a group plan. The Government Accountability Office (GAO) reported in April 2008 that many individuals enrolled in HSA-qualified health plans did not open tax-qualified health savings accounts, and individuals that had health savings accounts had higher incomes than others. According to the report, nationally representative surveys conducted by Blue Cross Blue Shield Association in 2005 to 2007 found that 42–49% of HSA-eligible plan enrollees did not open health savings accounts in those years. Based on an examination of Internal Revenue Service (IRS)