1988

6.7

1983

6.8

2025

8.0

1994

7.8

2019

8.4

2014

7.8

1968

7.1

1999

8.2

2015

7.7

2011

8.1

2015

7.8

2019

8.1

1992

8.5

2020

7.6

1960

7.1

2000

6.2

2010

6.4

2003

7.2

2002

8.0

2014

7.2