1994

5.1

1996

5.4

2001

6.2

2000

5.7

2005

6.1

2004

6.2

2003

5.6

1979

6.0

2023

7.5

2025

0.0

2003

5.6

2001

6.0

1970

4.4

1987

6.3

1967

4.3

2003

5.5

1968

5.2

2002

4.3

1993

6.2

1997

5.4