1990

6.9

2023

6.5

2021

7.4

2019

7.2

1992

6.8

2015

8.0

2024

8.2

2008

5.8

2017

7.6

2010

7.4

2011

6.1

2003

7.1

2000

3.5

2000

6.9

2009

8.1

1995

6.2

2004

7.8

2015

7.3

1968

7.3

2019

7.2