1999

6.3

1984

7.1

2006

6.2

1991

6.2

1956

7.1

2008

7.1

2003

6.0

1978

6.9

2022

3.8

1993

6.6

2015

7.8

2017

5.4

1983

5.5

2009

7.3

2004

6.2

2002

6.6

1987

7.1

1990

6.0

2016

5.9

2017

8.0