1998

7.9

2021

6.5

2014

3.6

2000

5.3

2002

6.2

1996

6.5

2016

6.0

2013

5.0

1977

6.3

2000

4.4

2005

4.6

2008

6.5

1959

6.9

1985

6.4

2009

2.9

2006

9.8

1958

6.9

2008

4.0

2018

0.0

2004

5.2