1988

5.5

1982

8.0

1955

7.2

1961

6.9

2018

6.3

2009

5.8

2010

6.0

2009

7.3

6.5

6.4

1968

7.4

2003

5.0

2017

7.2

1994

4.7

2015

7.0

1973

6.8

2023

6.3

2015

5.9

7.8