1999

5.8

2003

6.3

2000

5.9

2005

7.0

2021

5.6

2020

0.0

2019

4.2

1990

6.5

2018

6.1

2023

5.2

1982

6.9

1987

6.3

1986

5.6

2004

6.5

1987

0.0

1987

6.5

2009

7.3

2009

5.6

2009

6.0

1981

6.9