2005

5.5

2010

5.6

2016

5.9

2010

7.7

2019

6.3

1947

7.5

1964

7.0

1998

6.6

2018

5.6

2009

6.7

2003

6.9

1986

6.8

2021

5.6

1989

6.3

2011

5.5

2004

6.4

2012

5.4

2016

7.8

1992

5.3

2009

6.6