2000

6.1

1978

6.6

2018

5.8

1952

0.0

1990

7.5

1993

7.8

1996

7.6

2014

6.8

1999

5.6

2015

5.9

2017

5.6

1933

0.0

2019

5.8

2021

6.6

1934

6.3

2010

1.0

1930

8.0

1993

6.6

1925

0.0

1965

7.5