2017

6.1

1961

8.0

2018

6.0

1993

6.1

1974

7.0

2007

6.8

2003

6.2

1968

7.4

1987

5.4

1973

7.6

1988

6.2

2010

6.6

2020

7.3

1987

4.5

2022

6.3

1998

7.8

1949

7.7

2007

5.1

1981

5.0

2012

7.0