68% (2015)

61% (2014)

59% (2002)

62% (2008)

60% (2016)

66% (2009)

67% (2007)

64% (2007)

64% (2013)

58% (2001)

61% (2017)

53% (2004)

56% (2005)

72% (2003)

54% (2001)

57% (2003)

64% (2004)

55% (2018)

52% (2010)

67% (1999)