55% (2005)

65% (1997)

46% (2003)

56% (2008)

62% (2010)

47% (2020)

65% (2014)

60% (2015)

62% (2011)

62% (2008)

62% (2017)

61% (2002)

65% (2011)

49% (2005)

57% (2007)

66% (2001)

58% (2014)

58% (1973)

60% (2001)

54% (1998)