1998

8.6

2021

7.5

2000

7.9

1968

7.3

2000

8.0

2010

6.7

2004

7.2

1990

7.8

2017

8.0

1998

7.0

2006

8.3

2011

7.8

1992

6.9

2001

7.8

2024

7.7

2025

9.6

1995

7.9

2006

6.8

2018

8.3