2001

5.9

2021

6.1

2017

6.0

1968

6.9

2014

6.5

1999

6.7

2017

6.9

2002

8.4

2025

10.0

1973

6.4

2011

6.3

2023

6.2

2024

6.5

1993

6.1

5.7

1981

5.8

2009

5.6

2011

7.5