1995

6.5

1939

7.8

2001

6.3

1999

6.9

2006

5.5

2002

6.2

2001

5.1

2003

6.3

1993

6.7

0.0

2018

6.8

2023

0.0

0.0

1994

6.6

2012

10.0

1988

7.7

2005

6.8

1981

4.9

2004

7.2

1976

5.7