1998

6.1

1973

7.4

2015

5.1

1993

5.5

2020

5.8

2005

6.4

1956

7.1

2000

7.4

2016

6.3

2015

4.9

2005

9.9

1995

7.8

2008

8.9

1997

6.5

2016

6.7

1970

7.6

2013

5.9

2016

6.9

2018

5.3

2009

6.0