2000

7.5

1989

8.3

1955

7.5

1983

7.2

1999

8.0

1986

7.6

2008

7.0

2002

7.6

1985

6.2

2018

6.9

2009

6.5

1980

6.3

2023

6.5

1995

7.4

1996

7.3

2003

6.6

2004

6.2

2021

6.6

2021

7.1

1991

5.1