2019

6.7

1974

6.4

2000

6.4

2004

8.0

1982

6.1

2010

7.0

2003

7.1

2015

6.9

1995

5.5

1969

4.7

1979

6.2

2002

6.6

1988

7.0

1919

6.9

2010

7.9

1970

7.3

1999

7.4

1968

6.3

2021

7.2

1977

8.0