 From 1984 to 1993 the Labour then National governments introduced major changes designed to get area health boards (later Crown health enterprises) to imitate market forces.User charges were introduced for prescriptions in February 1985 but broader controversial policies introduced by the Fourth National Government between 1991 and 1993 effectively ended largely free provision of primary healthcare, such services being targeted on the basis of income while Community Service Cards (introduced on 1 February 1992) provided additional support.Public hospital charges of $50 for overnight stays were briefly implemented but was later abandoned as the 1993 election approached.