1968

1.5

1979

5.5

2018

1.0

2007

6.6

2022

5.8

2003

2.8

1999

6.0

1969

6.3

2002

5.1

1983

5.1

1972

5.1

2015

4.6

2019

8.1

2013

4.4

2002

3.6

1992

4.2

2017

6.8

2023

0.0

1999

4.0

1970

3.0