2020

6.4

1996

7.8

2015

6.4

1972

6.6

1958

5.6

2008

6.7

2021

7.5

2006

6.8

2012

5.3

2018

6.3

1990

5.5

2003

5.3

2018

6.0

2015

6.5

1989

7.3

2011

5.7

2011

6.2

2005

8.6

2010

7.0

2002

8.7