1985

7.4

2024

4.0

1996

7.8

1999

6.8

2011

8.0

2020

8.1

1964

7.9

1995

6.0

2021

6.6

2005

4.8

2015

8.4

1982

8.1

2012

10.0

1987

4.8

2016

6.0

2015

7.2

1970

5.5

2016

7.1

2013

7.0

2006

5.0