53% (2004)

55% (1997)

63% (2002)

52% (1997)

38% (1992)

67% (2003)

55% (1989)

61% (1996)

50% (1994)

51% (2010)

55% (2002)

70% (1990)

45% (1999)

100% (1997)

100% (1993)

35% (1994)

0% (1990)

35% (1994)

0% (1995)

49% (2005)