2017

6.9

2001

7.9

1991

8.2

2015

6.0

1985

3.5

2004

7.2

2019

6.9

2013

6.3

1981

4.0

1988

9.3

1999

7.0

2006

4.5

2023

8.5

2004

9.1

1961

6.0

2016

6.8

2021

6.5

2003

7.8

2011

6.7

2000

8.4