1959

8.4

1995

6.4

1999

7.0

2003

7.8

2002

7.5

2009

6.8

1984

7.5

2011

7.4

2020

7.7

1998

6.9

2025

7.9

1995

7.9

2021

8.5

2022

8.2

2023

8.7

2016

7.2

2008

8.1

2011

8.5

1996

6.8

2023

8.2