2014

6.5

1994

5.7

2006

5.4

1980

4.0

2017

9.5

2016

2.5

2009

7.2

2002

6.7

2015

5.4

2016

3.9

2007

6.0

2022

4.5

1977

4.6

2001

6.1

1993

6.1

1998

6.5

1981

6.4

1995

6.0

1979

7.0

1984

6.9