1979

5.5

1970

3.0

1972

5.1

2015

4.6

1999

4.0

2023

0.0

2018

4.3

2018

1.0

1992

4.2

1983

5.1

1969

6.3

2007

6.6

2003

2.8

1999

6.0

2002

5.1

2019

8.1

2017

6.8

2013

4.4

2002

3.6

1998

3.6