2015

6.6

2018

6.3

1981

7.2

2004

6.9

2017

6.9

2024

9.6

2007

5.7

1994

5.5

2015

6.8

2009

5.6

2023

9.2

1985

8.1

1977

6.7

2008

6.1

1976

5.2

2011

7.3

2010

6.0

2018

7.1

2007

7.0

2017

6.0