2015

6.1

2021

5.9

1990

7.7

2002

6.7

1971

7.5

1939

7.6

1953

7.7

2023

6.0

2002

6.9

1995

7.0

2025

0.0

1982

7.3

2007

7.3

2007

6.6

2001

5.7

2013

6.0

2012

5.1

2013

6.0

2009

6.9

2003

5.4