1985

7.9

2004

8.3

1977

7.3

1996

5.3

2001

6.6

2004

8.6

2020

9.8

2002

8.2

2008

7.8

2013

7.7

2011

8.1

2002

6.9

1983

6.8

2021

8.7

1986

7.5

1992

5.9

5.8

1988

8.0

2005

6.3

2012

7.4