46% (1997)

53% (2003)

60% (2006)

57% (2013)

58% (1996)

60% (2005)

72% (2017)

69% (2001)

63% (2012)

56% (2002)

43% (1996)

56% (2004)

37% (2007)

20% (1998)

50% (2008)

68% (2013)

64% (2008)

65% (1997)

63% (1996)

51% (2005)