2001

5.2

1993

7.3

2007

6.7

2002

6.1

1966

6.3

2015

6.0

2008

6.5

2013

8.1

1987

6.8

2018

6.4

1990

7.2

2022

5.5

1974

6.9

2018

6.5

2018

5.8

2008

9.0

1983

7.6

2011

5.9

2003

6.4