38% (1997)

70% (2001)

60% (2016)

70% (1988)

0% (1995)

60% (1985)

35% (1995)

55% (1992)

30% (1996)

40% (2007)

41% (2011)

47% (1994)

42% (2015)

52% (1989)

61% (1983)

37% (1994)

73% (2001)

58% (1987)

47% (2012)

71% (2018)