1999

7.0

2006

6.6

2012

5.5

2023

6.4

2022

7.4

2004

7.1

1960

8.0

2016

5.1

1972

7.1

2023

6.0

1932

5.9

1990

6.1

1987

6.7

1985

6.8

2009

7.3

1994

5.5

2008

5.7

1987

5.7

1977

6.0

2011

7.1