55% (1999)

48% (2004)

62% (2001)

69% (1996)

72% (1992)

71% (1994)

46% (2001)

64% (1985)

66% (2019)

64% (1995)

63% (1992)

61% (2007)

59% (2002)

60% (2002)

60% (1997)

60% (1987)

50% (2009)

10% (1996)

60% (1990)

30% (1994)