1956

6.7

2001

7.1

1991

4.7

2017

7.1

2014

5.8

1986

5.7

2003

6.7

1996

7.0

1998

6.8

1991

6.1

1996

5.5

2006

5.9

2006

6.2

2021

6.3

2014

3.1

2006

5.9

2006

6.4

1978

3.5

2018

9.5

2020

0.0