1986

6.0

1999

5.7

1979

6.5

2004

8.1

2004

8.6

2002

7.5

2022

7.0

1998

7.0

2019

5.5

1989

6.6

2021

6.8

1972

7.9

2005

10.0

2013

8.1

2015

8.0

2003

8.5

2004

6.5

2023

5.3

2002

8.0

2008

3.3