1991

7.0

1990

6.7

1993

5.8

1989

4.8

1987

6.7

2017

6.9

2013

4.6

1986

6.4

2023

10.0

1999

5.8

2002

7.4

2014

7.4

2023

7.8

1973

6.2

2020

5.5

1995

6.3

2018

5.8

2024

5.9

1985

5.1

2011

6.9