2005

6.3

2018

4.2

1997

6.6

2004

5.8

1954

8.4

2005

6.3

1991

4.8

2015

3.7

2000

6.9

1976

7.6

1984

6.8

2020

6.3

1994

6.4

2009

0.0

1989

4.2

2012

5.2

1978

3.0

2002

6.2

1968

6.2

2008

6.6