2006

7.0

2016

6.6

2008

4.9

1985

6.9

1998

6.7

1997

7.6

1972

6.4

1956

7.3

1955

6.0

1986

8.0

2021

9.0

2019

8.0

2013

6.5

2017

6.2

2001

4.9

0.0

1979

7.0

2005

5.8

2017

6.2

1999

6.9