1937

7.9

1998

6.6

2013

7.0

2000

5.0

2015

8.0

1967

7.5

2005

6.6

2007

6.2

2016

6.8

2016

7.4

2016

7.0

2007

10.0

2018

4.3

2022

7.8

2022

5.9

2013

6.9

2020

7.8

2018

6.7

2003

6.4

2001

7.1