1968

6.9

2024

6.6

2007

7.4

2009

8.5

2016

6.8

2017

9.5

6.7

2023

6.3

1989

5.4

2014

6.4

2018

8.4

2013

6.8

2013

8.0

2012

9.7

2020

6.3

1985

6.5

1992

5.0

2006

6.8

2000

5.2

2012

7.3