2011

6.2

2024

7.6

2020

5.6

2002

4.7

2010

7.1

2000

6.4

2000

5.1

2001

6.9

1998

6.2

2002

6.0

2013

8.7

1978

6.8

2021

7.8

1971

6.1

2008

6.7

1980

5.7

1996

4.7

1987

7.2

1982

5.9