1968

1.5

1969

6.3

1999

4.0

2002

3.6

2015

4.6

2013

4.4

2018

4.3

2018

1.0

1992

4.2

2007

6.6

1983

5.1

1999

6.0

2002

5.1

2022

5.8

1972

5.1

2019

8.1

1970

3.0

2023

0.0

2003

2.8

1984

4.8