2002

7.8

2019

6.6

1991

4.9

2001

5.2

5.3

2011

5.6

2014

6.9

2007

5.7

2024

6.4

2017

5.9

2017

5.9

1987

6.0

1967

6.4

2017

6.9

1988

6.2

2008

5.8

1980

6.6

2009

7.8

2017

6.7

2009

5.9