50% (2003)

72% (2005)

72% (2007)

63% (2004)

66% (2010)

63% (2011)

64% (2004)

67% (2016)

68% (2005)

68% (2006)

61% (2014)

62% (2002)

68% (2007)

46% (2006)

68% (2007)

50% (1996)

59% (2018)

55% (2004)

58% (2007)

57% (2009)