2021

9.0

1999

8.5

2004

8.6

1993

8.2

2014

10.0

2006

9.3

2017

7.0

2001

6.6

1977

6.3

1992

5.8

2010

5.0

1986

5.5

2009

6.6

2013

6.0

2001

7.4

2008

5.0

2002

7.8

1997

6.9

1993

7.9

2016

7.8