2007

10.0

2001

8.9

2013

5.5

2011

5.0

1992

5.7

2021

6.2

1991

5.3

1996

7.5

2019

6.5

2004

9.9

1971

6.7

1926

5.6

2010

6.9

1978

5.8

1986

6.4

1949

6.9

1981

7.1

2020

6.7

2000

9.4

2021

7.7