2011

6.7

2020

6.9

2021

6.8

2019

8.5

1954

8.4

1985

8.3

1957

8.5

2019

7.7

2004

7.5

1997

7.9

1960

8.4

2019

8.1

1979

8.2

1994

8.7

1999

8.0

1999

7.5

1976

8.1

1999

8.4

2009

7.7

2019

7.2