2013

7.5

2003

6.0

2000

7.0

1989

9.3

1994

7.4

2002

6.5

2001

5.2

1987

5.5

1996

5.8

2018

5.3

1996

6.2

1989

9.3

2004

6.4

2006

6.6

1994

6.2

2006

5.5

2016

5.6

1938

7.4

2005

5.9

1976

7.5