1990

6.9

1984

8.4

2002

6.9

2000

7.0

2001

7.5

1998

6.0

1981

6.5

2003

6.6

1973

8.0

1996

6.5

2023

9.2

2008

7.2

1999

6.5

1977

7.1

1982

6.7

1994

7.1

1995

7.3

2021

5.5

2008

6.9

1999

5.7