1992

6.8

2004

8.6

1990

7.8

1992

5.8

2024

8.3

2023

7.4

2017

7.5

2011

7.2

2008

7.6

2007

7.9

1976

8.0

2020

6.7

1993

6.7

1998

7.2

2013

7.9

2006

8.4

2018

6.8

1993

7.1

2022

6.9

2014

7.0