pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
e,p,e-p,26,0.1262462698093887,0.33199470393136377,$null
f,p,f-p,64,,,$null
g,p,g-p,46,0.40442288450523434,0.11517337266379823,$null
h,p,h-p,-94,0.4148969058190054,0.23577807386343264,$null