1982

7.6

2000

7.5

2001

7.4

1998

8.2

1995

7.5

1997

7.9

2002

8.4

1984

7.5

2002

8.0

1976

7.7

1994

7.0

1993

6.3

2006

6.9

2006

7.9

1999

6.8

1998

6.8

2024

6.4

2019

5.7

2019

1.8

2022

7.0