1993

6.6

2022

5.5

2022

7.4

2014

8.4

2011

7.0

2015

8.4

1990

6.3

2007

5.7

2018

5.3

1971

6.8

1937

6.7

1996

9.5

2010

7.1

2014

7.5

1970

6.0

2009

7.2

1970

7.3

2010

5.6

1988

6.5

2015

6.6