1927

8.1

2001

8.5

2007

7.3

2009

7.2

1997

8.3

2005

7.0

2013

7.2

2013

7.6

1990

7.5

2024

7.6

1988

6.2

2015

7.7

2019

7.4

2011

8.3

2018

6.8

2025

7.1

1991

7.1

1994

8.3

2023

7.9

1973

7.7