1991

6.4

1982

7.4

1996

9.7

1995

6.2

1987

7.2

1977

7.2

2022

6.5

2005

8.7

2021

7.2

2001

6.6

2009

4.0

1989

8.0

2016

8.0

2013

7.4

1984

7.7

2002

7.4

1981

7.0

2007

5.5

2000

7.3

2020

7.3