2001

6.8

1987

6.9

1985

6.7

2016

0.0

2018

8.0

1986

7.4

2007

7.0

2019

10.0

2008

6.2

2019

0.0

2006

6.6

2003

6.8

2005

6.5

2008

4.3

1951

5.7

1963

7.4

2002

8.4

1998

8.1

1999

7.1

1952

6.4