2004

5.6

2002

7.0

1976

8.1

1999

6.9

1996

7.5

1970

7.1

1979

7.0

1989

7.2

2001

6.0

2004

6.2

1989

7.1

2006

6.6

1995

8.0

1993

6.8

2026

0.0

1991

4.0

1973

3.8

1943

8.0

2016

6.4

2022

6.5