1991

6.0

2018

5.9

2007

10.0

6.7

6.7

2017

8.1

2015

6.9

1953

6.1

1969

4.0

2022

7.3

2014

7.5

2012

5.7

1974

9.0

2008

6.8

2017

7.3

2017

6.2

1996

5.1

2021

6.5

1998

6.5