54% (2006)

63% (2010)

63% (2009)

56% (1991)

58% (2016)

57% (2017)

54% (2011)

48% (2004)

69% (2008)

50% (2009)

55% (2019)

0% (2011)

40% (2010)

40% (2008)

47% (2002)

56% (1997)

37% (2013)

53% (2010)

61% (2014)

49% (2018)