1987

6.9

1978

6.0

1988

6.4

1997

6.1

2017

6.2

2013

6.7

2005

5.9

1998

7.3

2023

8.0

1953

7.1

2007

6.7

2010

4.6

2007

7.2

2021

6.8

2016

6.5

2000

7.4

1984

4.8

2023

10.0

2003

6.8

2023

7.1