1986

7.6

2006

5.6

1995

8.4

2004

6.5

1958

7.4

1993

5.5

2017

6.2

1935

7.3

1991

8.3

1996

7.9

1995

7.0

2007

6.7

2003

6.5

2002

6.9

1984

7.3

2007

7.2

1976

6.7

1972

7.1

2019

4.0

2018

5.2