58% (1995)

50% (1999)

50% (1992)

46% (1998)

67% (2013)

62% (2002)

42% (2004)

77% (2002)

70% (2005)

46% (1993)

60% (1991)

63% (1996)

58% (1998)

51% (1996)

53% (1999)

64% (2004)

48% (1992)

34% (1998)

68% (1993)

57% (1998)