72% (1996)

59% (1991)

71% (2000)

58% (1998)

64% (2012)

60% (1993)

55% (1994)

56% (2005)

64% (1997)

62% (2019)

50% (2004)

63% (2003)

47% (1993)

60% (2004)

47% (1997)

54% (1995)

68% (1998)

58% (1995)

32% (2000)

62% (1992)