pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
e,i,e-i,-77,,,$blah
f,i,f-i,49,0.3810254992724753,,$blah
g,i,g-i,-4,0.41983249376450316,0.3243828920784265,$null
h,i,h-i,69,,,$null