sentences:  In 1994, the plan's first year of operation, nearly 120,000 new members enrolled, and bad debts at Portland hospitals dropped 16%.The cost of the Oregon Health Plan increased from $1.33 billion in 1993-1995 to $2.36 billion in 1999-2001, leading to budget-tightening measures in the early 2000s; significant cuts would follow in 2003.New enrollment in the program was closed from mid-2004 until early 2008, when a lottery-based system was introduced.