67% (2023)

54% (2010)

52% (2008)

56% (2003)

66% (2003)

59% (1997)

62% (2004)

55% (2022)

60% (2009)

62% (2005)

62% (2003)

58% (2005)

51% (2012)

68% (2006)

65% (2005)

56% (2002)

63% (2002)

53% (2002)

49% (1996)

61% (2007)