1968

6.9

1993

6.1

1969

5.1

1988

5.3

2009

4.8

2025

6.8

2006

5.5

1979

7.6

2024

9.9

1995

6.8

2019

7.3

1974

7.3

2023

6.9

2003

5.8

2017

7.6

2013

7.5

1888

4.9

2025

7.4

1958

6.8

2000

5.1