76% (2006)

64% (2008)

61% (2009)

60% (2007)

48% (1997)

69% (2002)

58% (2020)

50% (2000)

56% (2009)

61% (2010)

56% (2006)

65% (1999)

53% (2003)

60% (2001)

63% (2023)

62% (2001)

0% (1970)

35% (1999)

0% (1970)