1986

6.8

2008

5.6

2019

7.7

2017

6.0

2000

7.1

2002

6.5

1981

7.5

2005

0.0

2025

0.0

1980

6.6

2010

0.0

2024

6.3

2021

4.7

2012

3.0

2009

6.2

1951

5.0

2019

6.8

1959

6.5

2016

8.0

2018

6.2