1997

6.8

1987

6.2

1972

6.4

2018

7.6

2012

6.3

1946

6.8

1968

6.8

1990

7.2

2002

9.5

2010

6.6

2007

10.0

1947

7.0

2014

7.7

1994

8.9

2023

8.4

1985

7.8

1914

7.2

1928

7.9

1989

6.5

1955

6.6