1992

6.2

1996

8.2

1977

7.3

2019

8.8

2014

6.0

2005

9.8

2016

8.0

2017

6.7

1988

5.5

2006

5.2

2000

6.5

0.0

2002

6.3

2015

4.8

2022

7.0

1997

5.0

1933

6.0