90% (1995)

48% (2002)

48% (1992)

53% (2001)

62% (2003)

35% (1994)

80% (1990)

57% (1997)

33% (1992)

47% (2004)

53% (2002)

69% (2003)

100% (1993)

62% (1996)

60% (1994)

0% (1992)

0% (1990)