62% (2011)

51% (1993)

78% (2006)

63% (1989)

82% (1995)

58% (2015)

44% (2009)

57% (2008)

80% (1999)

80% (2007)

100% (2009)

65% (2017)

90% (2018)

78% (2005)

0% (1970)

100% (1971)

70% (1983)

60% (2001)

56% (1998)

70% (1988)