62% (2009)

85% (2005)

71% (2015)

68% (2001)

64% (2000)

56% (1997)

0% (2010)

50% (1993)

67% (2020)

58% (2013)

69% (2006)

61% (1999)

70% (2003)

0% (2014)

54% (1987)

75% (2010)

53% (2011)

60% (2012)

85% (2017)

55% (2005)