1976

7.9

2003

6.4

2013

7.7

2014

8.3

2016

7.6

2004

8.3

2015

7.0

1992

5.9

1993

6.6

2010

6.7

2021

8.1

2023

8.2

2011

7.3

2013

7.3

1975

6.3

1990

6.9

5.8

2020

10.0

1995

7.9

2016

8.2