69% (2006)

90% (2023)

71% (2004)

50% (1995)

66% (1987)

58% (2016)

58% (2001)

52% (1991)

55% (1989)

56% (1999)

56% (1993)

56% (1983)

80% (2012)

0% (2009)

62% (1978)

62% (1975)

58% (1992)

60% (2007)

50% (1995)

70% (1986)