71% (2004)

70% (2006)

66% (1987)

59% (1983)

58% (1995)

52% (1991)

58% (1992)

58% (2016)

50% (1995)

58% (2001)

56% (1993)

60% (2007)

90% (2023)

66% (1997)

56% (1999)

0% (2009)

62% (1975)

80% (2012)

55% (1989)

0% (2015)