63% (2009)

56% (2008)

57% (2009)

72% (2005)

52% (2010)

60% (2013)

66% (2005)

61% (1996)

62% (1997)

60% (1992)

63% (2015)

61% (2003)

60% (2007)

57% (2013)

65% (1991)

61% (2021)

55% (2015)

47% (2001)

58% (1990)

63% (1995)