1994

8.0

1971

8.1

1997

7.4

2003

5.1

2018

1.0

2005

8.1

1997

6.1

2011

5.3

2000

8.5

2005

7.7

1998

5.0

1989

5.5

2006

5.2

1995

7.2

2008

5.5

2006

5.3

1997

6.0

1998

5.2