2014

3.2

2003

7.8

1939

7.6

2001

7.9

2002

7.7

2004

8.0

2005

7.8

2007

7.7

1992

7.3

2009

7.7

2013

4.1

1968

6.7

2021

2.3

1958

6.5

2007

7.3

1971

5.0

2006

7.4

2017

7.0

2004

8.4

2020

4.3