2002

6.8

1981

7.5

2000

7.1

2008

5.6

1980

6.6

2014

6.0

1986

6.9

2022

0.0

2009

6.2

1966

6.3

2000

0.0

2017

6.0

2012

3.0

2021

4.7

2005

0.0

2019

7.7

1951

5.0

1959

6.5

2013

6.2

2019

6.8