1995

7.1

1986

8.0

2002

7.4

2004

7.0

2006

7.6

1997

8.3

2003

7.2

1997

8.4

2000

7.9

2012

5.0

2006

7.3

2002

8.1

2019

0.0

1997

7.3

2012

0.0

1999

7.7

2014

8.5

1992

0.0

1990

7.1

1969

8.2