57% (1999)

66% (2012)

65% (2008)

64% (2010)

70% (2004)

67% (2007)

69% (2012)

74% (2006)

70% (2003)

70% (2009)

75% (2004)

71% (2002)

64% (2006)

70% (2010)

53% (2001)

50% (2025)

61% (2010)

50% (2000)

69% (2007)

42% (2009)