2015

8.1

2010

6.6

1998

5.0

2018

8.0

2022

5.9

1948

7.0

1958

7.6

2002

4.4

2010

5.1

1975

7.3

2006

5.6

1984

5.6

2023

6.4

1976

7.6

1981

6.0

2021

6.4

1990

5.7

2016

7.2

1962

6.4

1972

7.2