2016

6.7

2006

6.1

1993

6.5

1989

7.3

2003

5.2

2013

6.5

1974

6.3

2011

7.1

2004

6.6

2011

7.0

1971

7.2

2001

6.8

1959

6.1

2001

5.2

2011

6.6

2020

6.8

2015

5.4

1963

6.2

2022

8.3