1996

8.0

1993

5.5

2020

4.7

2003

5.8

1977

6.7

2015

6.5

2001

4.3

2021

5.3

1999

6.8

2006

5.8

2013

6.6

2004

6.7

2022

6.2

2020

6.7

2022

6.9

1974

6.3

2011

7.1

2023

7.4

2021

9.2

1940

6.2