1993

5.5

2008

7.3

2007

6.9

2015

8.4

2003

5.8

1958

5.2

2011

6.7

1994

6.3

2014

4.5

2015

6.4

2001

6.8

2014

7.0

1980

5.9

1989

5.8

2012

4.5

2016

6.7

2024

7.7

1976

4.8

2015

6.5

2021

7.1