2005

6.9

2001

6.1

2014

5.5

2002

5.1

1964

7.1

2006

5.2

1998

6.8

1999

7.9

1995

6.5

2015

9.0

2021

2.5

1930

6.5

1996

4.0

2000

6.8

2018

0.0

2009

6.1

2025

0.0

2022

7.3

2024

9.0

2023

5.7