2020

9.4

2014

10.0

2007

6.3

2015

6.5

2022

7.1

2008

7.6

2009

6.5

2002

6.6

2006

5.9

1970

7.2

2019

5.7

1992

7.4

2003

7.0

1990

7.5

1972

7.3

2000

6.1

2004

7.1

2010

7.0

1998

6.2

2006

10.0