1988

6.3

1994

6.7

1984

8.4

1990

7.5

1958

5.2

2018

7.0

2007

5.9

1989

6.6

1933

6.1

1986

5.8

2001

6.9

2015

6.6

2004

6.1

1936

6.0

2021

7.2

1971

7.5

1993

7.9

2001

6.1

2000

6.3

2025

1.0