1984

6.5

1993

5.5

2003

6.1

1987

6.9

1981

5.9

2002

5.5

5.2

2020

6.0

2014

5.4

2011

9.5

1969

4.9

1989

4.6

2024

6.3

2021

5.7

2015

8.4

2014

4.5

2012

4.5

2023

9.8

2024

7.4