1967

8.6

1990

5.8

2010

7.4

2022

8.3

2003

7.0

2015

8.3

2014

7.3

2021

6.2

2018

5.9

2024

9.6

2013

4.4

1995

5.9

1991

6.6

2021

8.2

2017

5.6

2006

4.0

2007

6.9

1955

8.4

2002

5.4