2018

9.5

2020

6.0

2009

7.6

2013

6.1

2021

5.6

2015

7.4

1931

5.8

1968

5.5

2016

8.8

1995

7.5

2003

6.2

1969

6.4

1972

6.0

2001

10.0

1998

6.3