2014

6.5

2010

5.3

2014

8.0

1961

6.9

2001

7.2

2011

7.6

1982

5.2

1956

7.7

2001

7.0

1992

7.1

1990

6.1

2020

9.4

1982

5.7

1991

5.9

2015

5.1

1965

6.3

2013

4.8

1981

6.5

2020

6.0