64% (2016)

60% (2002)

43% (2005)

72% (2017)

63% (2000)

67% (2007)

76% (2001)

64% (1994)

53% (1991)

58% (2015)

63% (2008)

72% (2005)

72% (2002)

61% (2014)

61% (2003)

60% (2010)

63% (2008)

68% (1998)

62% (2011)

59% (1988)