67% (2010)

64% (2007)

64% (2008)

61% (2005)

62% (1999)

63% (2008)

60% (2007)

60% (2004)

58% (2011)

65% (2008)

56% (2008)

40% (2019)

58% (2011)

62% (2010)

63% (2012)

54% (2010)

58% (2012)

62% (2011)

57% (2008)

62% (2008)