2015

6.2

2001

2.0

1986

6.1

2000

4.8

2003

8.2

1999

5.8

2017

5.9

2003

5.6

2001

5.9

2001

7.0

2007

6.7

2003

6.5

1984

6.7

2018

4.7

1997

6.5

2018

5.7