1970

7.1

2001

6.8

1999

7.7

1996

7.2

2005

4.5

2017

0.0

2017

1.0

2012

6.5

2023

6.0

2004

8.1

2002

6.9

1996

7.5

1979

7.7

1950

8.1

2016

4.7

1947

4.9

2020

10.0

2014

6.1

2014

5.8

2003

7.8