1959

7.9

2007

4.8

1979

5.2

1990

6.4

2006

4.4

1994

5.4

1956

7.1

2010

6.8

1998

6.9

2009

7.8

1976

0.0

2008

6.4

2015

7.0

1998

6.6

2002

6.6

2022

6.6

2016

0.0

2021

7.7

1973

6.0

1997

6.4