1993

6.9

2023

7.1

2024

6.7

2009

7.6

2022

7.0

2009

6.2

2008

6.8

2022

5.1

2018

7.9

2015

7.5

2011

5.0

1988

5.5

2021

8.3

2012

8.2

1996

5.3

2008

3.8

2018

6.8

1990

6.6

2022

5.5

2023

5.3