2018

4.7

1976

6.5

1999

7.1

1982

8.1

2007

6.2

1992

4.3

2002

5.9

1960

7.3

2002

6.3

1998

5.4

1961

5.7

1978

7.5

1973

6.9

1925

7.1

2021

6.4

2023

8.6

2001

7.0

1997

7.4

1980

8.2

1979

6.2