63% (2002)

52% (2007)

68% (2021)

61% (2003)

62% (1999)

72% (2013)

62% (2004)

61% (1998)

67% (2011)

66% (2007)

65% (2009)

68% (1998)

50% (1996)

67% (2005)

66% (2012)

53% (1996)

55% (2009)

54% (2000)

72% (1995)

67% (2002)