1999

7.1

1990

6.2

2005

7.3

1992

7.4

1975

8.0

2017

6.1

1967

6.0

1954

7.1

1963

7.6

2001

7.4

1949

6.1

2022

7.2

1966

7.3

2006

6.7

2007

6.4

1983

4.3

2016

7.0

1994

8.5

2021

0.0

2008

6.6