2017

5.9

2002

6.2

1995

7.2

1929

7.4

1986

7.0

1999

6.7

1976

7.6

1980

6.7

2007

6.1

1998

6.5

2004

5.7

2019

6.3

2009

5.4

2007

5.8

2020

4.2

1943

6.4

1990

6.7

2008

7.2

2001

4.9

1989

7.1