33% (2007)

46% (2016)

54% (2009)

63% (1991)

40% (2004)

50% (2013)

62% (1994)

52% (2017)

61% (2012)

59% (1999)

60% (1990)

55% (2009)

67% (2016)

52% (2001)

49% (1996)

38% (2010)

74% (1992)

68% (1993)

25% (1988)

35% (1995)