2018

5.7

2019

6.9

1996

6.5

1995

5.6

1987

5.2

1993

6.5

1993

6.6

2003

6.8

1959

6.1

2016

6.7

1989

5.5

2010

5.7

2006

6.7

1996

5.8

1971

5.9

1999

5.7

2006

6.3

2002

6.5

2020

5.4

2005

5.2