1987

6.9

2002

2.1

1948

7.2

2005

4.8

1981

7.1

1995

5.8

1996

6.3

2021

6.1

2014

5.3

2017

5.0

1996

7.1

2002

6.4

1964

6.5

2018

3.5

2006

5.3

1994

6.3

1987

6.3

1950

7.0

1993

7.4

2004

6.5