But , over the past three or so years , their records are much more similar : since 2009 Steyn averages 22 , Anderson 23 .
Steyn averages around 23 per wicket , Anderson 30 .
Over the past three or so years , their records are much more similar : since 2009 Steyn averages 22 , Anderson 23 .
Steyn averages around 23 per wicket , Anderson 30 .