2005

6.2

1979

5.3

2002

6.4

2008

4.9

2003

6.5

1987

6.3

2009

7.2

1928

7.9

1933

6.2

2016

0.0

2018

4.9

2019

7.2

2014

5.8

1996

5.4

1958

7.0

2018

6.1

2002

5.8

2020

6.3

2007

3.9

2023

6.8