1988

5.8

1995

7.3

1964

5.8

2001

6.8

1969

1.0

2003

6.6

2018

7.6

1977

7.4

2000

7.1

1972

6.2

2017

4.9

1998

0.0

2009

6.7

1985

0.0

1934

6.7

1996

6.7

1995

7.3

2006

5.1

2002

6.1

2013

8.2