67% (2003)

57% (2012)

60% (2012)

61% (2011)

52% (2005)

52% (2008)

56% (2004)

68% (2009)

62% (2005)

62% (2012)

72% (2005)

68% (2004)

61% (2010)

59% (2005)

62% (2013)

45% (2008)

54% (2008)

56% (2018)

60% (2017)

59% (2018)