1998

6.6

1961

7.7

1974

7.7

2004

6.1

2001

7.3

2024

7.0

2006

6.5

2000

7.4

1981

6.1

1987

5.7

2008

8.1

2023

2.0

2003

6.0

2019

6.3

2007

3.8

2022

6.9

2016

5.7

2007

5.9

1979

5.3

2002

5.9