2000

7.2

1987

7.5

2011

5.5

2007

6.7

1996

6.7

2007

5.7

2013

7.7

1953

6.8

2004

7.1

2004

6.0

2016

5.9

1982

6.2

2019

6.0

2011

7.2

2003

6.1

1987

6.5

2017

5.7

2001

5.2

2020

6.7

2011

6.0