67% (2021)

62% (1998)

62% (2003)

71% (2013)

62% (1999)

68% (2005)

53% (2009)

63% (2002)

62% (2004)

68% (1998)

65% (2009)

66% (2007)

68% (2011)

67% (2002)

52% (2007)

50% (1997)

50% (1996)

0% (2007)

53% (1996)

72% (1995)