1990

6.9

2008

7.1

2013

6.6

2014

5.4

2016

8.0

2019

6.7

2010

7.5

1965

6.0

2011

5.7

1982

8.1

1983

6.8

2018

10.0

2023

6.0

2017

3.9

2000

7.7

2016

7.7

1983

7.6

2016

7.1

1973

6.9