68% (2015)

32% (1989)

54% (1999)

52% (1989)

38% (2005)

53% (1993)

59% (2000)

52% (2006)

55% (2012)

0% (2013)

63% (2009)

0% (1990)

50% (1989)

43% (2002)

68% (2020)

68% (2007)

61% (2006)

61% (2010)

45% (1997)

60% (2007)