58% (2007)

50% (2006)

43% (2014)

62% (1996)

70% (1998)

49% (1995)

73% (2015)

69% (2013)

62% (1992)

59% (1993)

64% (2017)

67% (2000)

67% (1995)

37% (2009)

59% (1994)

42% (1991)

34% (1989)

62% (1999)

59% (2004)

44% (1992)