2004

6.3

2013

8.0

2005

7.7

1976

8.1

2002

7.2

1995

8.4

1966

8.5

1999

8.2

1999

8.5

1999

8.4

2011

6.1

1972

8.7

2010

8.2

2019

8.1

1984

7.3

1997

7.9

1996

8.0

2014

8.5

1990

8.5

1980

8.2