1971

4.9

2011

4.7

1994

3.0

1990

8.0

2003

5.3

2021

5.0

2024

5.0

1996

6.7

2022

5.2

1994

6.3

1952

6.2

2009

6.0

2017

6.5

2022

0.0

2014

4.2

2010

5.3

2010

6.8

1978

5.8

2007

1.0

2011

5.9