pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
b,a,b-a,5,0.7290758494598506,,$blah
c,a,c-a,52,0.43456375856464435,,$blah
e,a,e-a,54,0.0913268866309852,,$blah