2018

5.5

1987

5.7

1999

1.4

1997

4.1

1994

4.5

2015

5.3

1994

3.2

1978

6.8

1980

6.4

1992

6.2

2007

5.7

2002

3.9

2007

7.3

2014

7.0

2021

0.0

1981

6.4

2008

4.7

2006

3.4

2007

5.8

1973

7.2