2016

6.6

2008

5.2

1990

4.4

6.2

1980

6.2

1963

5.9

1989

6.1

2003

7.2

2020

6.5

2023

7.8

2014

5.9

2009

6.2

1943

7.7

2024

5.3

1987

6.1

2020

9.0

1993

6.2

2022

6.8

1988

5.5

2020

6.4