1984

7.0

1989

5.5

1994

7.4

2009

5.9

1988

6.4

2017

8.2

6.1

1993

6.6

2010

7.7

2002

4.5

1988

7.4

1934

6.5

2003

6.8

2020

5.4

1999

5.7

2002

5.0

2000

7.1

2002

6.5

1996

6.5

2013

5.8