2020

6.7

6.3

1989

5.1

2009

5.6

2024

6.7

1990

6.1

2022

6.3

2003

7.2

1988

5.2

2000

5.2

1984

6.5

2012

6.0

2005

4.7

2014

5.4

1964

6.6

2008

7.2

1971

6.5

1990

5.7

1997

6.1