1998

7.2

2001

7.6

2003

7.9

1996

7.5

2012

7.5

2003

7.3

2008

5.7

1991

7.7

2021

8.4

1986

7.1

1984

7.0

2021

7.5

2004

7.8

2001

8.1

1977

8.2

1974

7.7

2024

7.4

2021

6.9

2017

6.7

2006

7.8