Table:
text: Health insurance in the United States
Managed care
Rise of managed care in the US
Year_ Conventional_plans HMOs PPOs POS_plans
1998 14% 27% 35% 24%
1999 10% 28% 39% 24%
2000 8% 29% 42% 21%
2001 7% 24% 46% 23%
2002 4% 27% 52% 18%
2003 5% 24% 54% 17%
2004 5% 25% 55% 15%
2005 3% 21% 61% 15%
2006 3% 20% 60% 13%
2007 3% 21% 57% 15%
2008 2% 20% 58% 12%

Question: For how many years have HMOs made up 27% and POS plans 18% of health insurance in the United States?

Question: What traditional plan has a 13% POS for health insurance in the United States?

Question: How many years is a traditional 7% plan in health insurance in the United States?

Question: Considering health insurance in the United States, what traditional plan has a 21% POS plan?

Question: Which HMO has a conventional 3% plan in 2005 among health insurers in the United States?