2007

5.7

2017

5.9

2011

5.6

1998

5.7

2004

6.1

2011

7.4

1983

8.3

2019

6.0

2014

6.3

1926

5.6

1987

8.0

2001

4.3

2019

7.7

2005

5.2

1995

8.4

2019

5.8

1972

6.2

5.4

1989

9.3

2014

5.9