1972

4.0

1968

6.4

2007

6.4

2010

5.8

2001

8.9

1990

6.5

1988

6.1

1993

7.1

2012

6.0

1973

6.8

2023

5.6

2006

5.8

2021

7.9

2024

7.0

1947

6.3

1986

6.3

2022

6.0

2015

6.0