2017

7.1

1938

6.2

2002

5.3

1948

8.2

2005

6.7

1973

7.6

1991

6.9

1975

5.8

2019

5.0

2005

6.5

2008

6.1

2003

6.1

2000

4.3

1981

7.2

1970

7.6

1999

7.1

1985

7.5

1999

6.1

2001

6.6

1994

6.5