2021

9.2

1992

6.9

2001

7.8

2011

6.1

2013

7.7

2005

7.2

1976

7.9

1999

8.3

2014

6.7

2009

7.3

1981

7.6

2016

6.9

2001

8.1

2006

7.7

1998

7.0

2012

8.2

1988

8.0

2002

7.3

1983

8.0

2019

7.6