68% (2021)

60% (2024)

63% (2011)

52% (1997)

45% (2004)

43% (2005)

26% (2014)

54% (2007)

52% (2008)

48% (2007)

36% (2010)

54% (2012)

59% (2013)

48% (2008)

57% (2008)

47% (2005)

32% (1998)

43% (2014)

45% (2001)

60% (2006)