1985

6.1

2015

6.4

2006

5.9

2013

7.6

2015

5.1

6.1

1965

5.5

2013

9.6

2022

6.5

2024

9.5

2002

4.6

2005

5.4

2021

5.7

2003

9.9

2023

6.5

1968

5.1

2018

6.3

2012

8.2

2008

6.7

2006

5.0