2021

6.2

2004

5.1

2015

6.4

2001

8.9

5.0

1987

7.1

1975

4.5

2013

7.2

1984

7.1

2007

5.7

1978

7.5

2009

5.6

2011

9.5

1960

7.8

2012

7.7

2010

6.3

1957

7.2

1988

6.0

1989

9.3