2020

7.4

1976

7.1

1997

7.6

2004

8.6

2011

8.1

2013

7.2

1967

7.4

2002

6.4

2010

5.0

1991

7.8

2016

0.0

1999

7.6

2003

6.2

1984

7.1

1981

8.1

2003

8.0

2003

7.5

2025

7.0

1995

7.2

1986

8.0