63% (2008)

67% (2002)

66% (1997)

66% (2009)

64% (1998)

58% (2011)

53% (2006)

64% (2007)

63% (2001)

58% (2005)

68% (2011)

68% (2000)

53% (2000)

62% (2016)

37% (2001)