68% (2013)

59% (2017)

57% (2020)

47% (2007)

56% (2016)

61% (2022)

52% (2021)

51% (2006)

50% (2003)

58% (2005)

59% (2005)

22% (2005)

54% (1996)

58% (2006)

54% (2011)

61% (2024)

56% (2004)

20% (2009)

0% (1999)

0% (1970)