69% (2011)

68% (2004)

76% (1997)

77% (2002)

59% (2010)

66% (2001)

51% (2013)

59% (2004)

50% (2007)

66% (1991)

70% (1996)

71% (1992)

64% (2008)

52% (2017)

45% (1993)

71% (1999)

70% (1999)

10% (2017)

68% (2003)

60% (2011)