1997

7.7

1989

6.0

1984

7.1

2002

7.4

1998

6.1

2006

7.7

2005

7.0

2016

4.6

1990

6.2

2016

10.0

2017

6.6

2007

6.4

2005

5.6

1934

7.8

2016

7.3

1995

5.1

2014

7.5

2021

0.0

1999

7.6

2023

5.6