2003

7.7

1994

7.5

2003

7.5

1976

7.9

1975

8.2

2003

4.2

1995

7.1

1996

6.8

2005

8.6

2006

6.4

1978

7.5

1984

6.6

1996

5.7

1986

5.7

2020

6.5

2019

7.8

2018

8.4

1999

6.8

1971

7.8

1976

7.0