55% (2014)

57% (1998)

70% (2001)

70% (1997)

59% (2005)

60% (2018)

55% (1999)

54% (2009)

68% (1991)

63% (1998)

58% (2003)

64% (1993)

57% (2015)

52% (1999)

47% (1993)

55% (2000)

49% (1967)

42% (1998)

62% (1994)

0% (1996)