2020

6.7

2007

4.9

1978

5.4

2010

5.9

2018

7.4

1962

7.3

1953

7.9

2000

8.1

1997

6.2

2005

6.2

2001

6.6

2008

6.6

1987

4.6

2000

7.0

2019

6.4

2006

6.9

1996

6.8

1990

7.0

1999

6.8

1983

4.9