67% (1999)

30% (2010)

47% (1999)

47% (2001)

46% (2000)

78% (2020)

33% (2008)

31% (1989)

41% (2003)

69% (1980)

64% (1978)

65% (1975)

83% (2005)

44% (2006)

56% (2010)

40% (1989)

63% (2011)

66% (2019)

62% (1968)

61% (2019)