1999

7.9

1960

8.4

2000

8.2

2016

6.2

2003

5.7

1964

7.3

1997

6.5

2015

7.7

2000

7.4

2002

5.1

1973

6.7

2014

5.8

2009

6.4

2024

6.7

2004

6.3

2020

6.2

1998

7.2

1975

7.7

2016

10.0

2021

7.6