1973

6.3

1953

4.8

1989

9.3

2020

5.2

2008

3.9

2016

7.4

2000

5.2

2019

7.4

2009

6.4

1973

7.5

1996

6.6

2006

7.0

2000

4.1

2017

8.8

2003

6.6

1985

5.3

1986

6.1

2012

5.6

2012

7.3

1966

6.4