2006

7.8

2007

6.1

1996

8.0

1983

4.0

2002

7.1

1987

6.2

1995

7.6

2005

6.3

2001

4.3

2016

7.0

2018

6.0

2023

10.0

1936

7.1

1999

5.0

2018

5.6

1928

0.0

1975

5.8

1970

5.5

2014

6.9

1992

5.0