2002

5.5

2014

6.8

1993

4.6

2009

8.5

2008

7.6

2020

7.0

1985

6.8

1966

6.5

2007

5.7

1988

5.2

2017

6.8

1995

6.3

2013

8.1

2012

7.7

5.4

2017

5.9

1994

6.1

1953

6.6

1950

6.8

1994

6.9