1988

5.5

1985

5.3

1985

6.2

2013

8.4

2021

6.6

1993

7.2

2003

6.0

1964

8.2

2013

7.8

1985

6.4

2008

7.7

1931

5.8

1943

7.6

1992

6.9

2015

7.4

1983

7.9

1973

6.9

2000

6.9

2019

6.3

1988

7.5