1997

5.1

2022

5.2

2001

6.3

1977

5.4

2011

7.1

2011

6.7

1993

5.2

1993

5.8

1989

6.7

2006

7.8

2007

6.7

2023

7.0

2012

4.4

2000

8.2

2013

8.6

2024

5.5

2021

6.0

2005

5.4

1971

6.2

2002

6.0