1996

6.7

2011

3.8

1976

7.6

2018

0.0

2023

4.0

1994

2.3

2005

4.2

1990

8.3

1971

4.8

2014

4.4

2006

4.2

1952

6.2

2009

5.9

2010

6.8

1994

6.1

2003

5.3

2017

6.3

2009

4.2

1985

0.0

1972

6.8