pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
d,y,d-y,52,0.7489577220696233,0.4391534486737374,$blah
e,y,e-y,-82,0.3455656244430817,0.962029072823442,$blah
f,y,f-y,29,0.09917846167904198,0.6547129575231422,$null
g,y,g-y,15,,,$null