1949

6.2

2006

5.9

2018

8.4

2023

6.8

1983

4.1

1993

5.6

1986

6.0

1953

6.2

2003

5.8

2022

3.0

2009

6.5

5.4

2014

9.0

2002

6.7

1970

8.5

1994

3.3

1980

6.2

2016

5.5

2012

10.0