2000

6.9

1953

7.2

2023

6.4

1986

6.2

2010

6.8

1985

6.1

1993

6.5

1999

5.9

2011

6.4

2020

6.4

1989

5.5

1987

5.3

1965

6.4

6.6

2011

6.6

1988

6.3

2015

6.6

2009

6.8

2018

6.3

1998

6.2