62% (2003)

67% (2021)

71% (2013)

53% (2009)

52% (2007)

63% (1999)

61% (1998)

68% (2005)

66% (2007)

68% (1998)

63% (2002)

67% (2012)

62% (2004)

67% (2002)

68% (2011)

65% (2009)

53% (1996)

50% (1996)

54% (2000)

72% (1995)