2001

7.8

1997

8.4

2025

8.0

2007

6.2

1998

7.2

2004

6.0

1970

4.5

2006

3.5

2004

6.9

2013

6.1

1990

6.2

2004

6.3

1977

7.7

2020

7.1

1964

7.6

2002

6.3

2001

7.9

1992

6.8

2024

5.4

2024

0.0