1984

8.4

2023

7.1

2008

5.4

2008

6.7

1983

7.8

1990

7.4

2004

8.1

2018

7.1

1952

7.7

2007

6.6

1959

7.3

2001

6.0

2003

7.0

2008

4.8

2009

5.7

2022

7.0

1969

4.3

2003

5.4

2014

6.6

2023

7.4