2018

9.5

2009

7.9

1988

5.5

1994

6.0

2019

8.7

2012

9.3

2004

5.9

1976

7.9

2014

6.6

2019

5.7

1949

6.9

2000

5.2

1966

7.2

1955

7.2

1979

7.1

1995

7.1

1969

7.0

2010

6.2

1972

6.8

2004

5.7