2014

6.8

2011

7.5

2022

7.4

2018

8.9

1974

8.6

1989

9.6

2002

7.0

1991

6.9

2006

6.6

2005

6.4

2017

7.2

2004

6.9

6.8

1974

5.1

2018

6.0

2009

7.2

2009

6.0

2019

5.3

2009

6.6