2004

7.3

2009

6.5

1976

8.1

1986

7.0

1979

7.1

2023

7.3

2013

7.4

2005

5.0

2016

6.1

1980

8.4

2024

7.1

2015

7.9

2019

8.1

2024

7.5

2015

8.0

2022

8.2

2021

6.1

2017

7.3

2023

7.7

1988

6.4