2001

7.2

2009

7.1

2020

7.0

1961

6.9

2021

9.5

2014

6.5

1996

5.8

2021

10.0

2003

7.2

2005

5.2

2012

8.0

2021

9.2

2011

7.3

1955

7.2

7.8

1993

6.5

2021

1.0