pk1,pk2,content,sortable,sortable_with_nulls,sortable_with_nulls_2,text
f,d,f-d,60,,0.4408231901628116,$blah
f,e,f-e,87,0.13141180642048544,,$blah
f,f,f-f,35,,0.2569700845632623,$blah
f,g,f-g,91,0.8703969593250397,,$blah
f,h,f-h,42,,0.2644585783524238,$blah
f,i,f-i,49,0.3810254992724753,,$blah
f,m,f-m,6,0.8336930832963215,,$blah
f,n,f-n,-45,0.44338308606070165,0.6856802654812854,$blah
f,t,f-t,-56,0.26536750832497336,0.5260855265978671,$blah
f,u,f-u,99,0.36203897381751204,,$blah
f,v,f-v,17,0.6433406842054887,,$blah
f,w,f-w,82,,,$blah
f,x,f-x,59,0.6330767243010155,0.3809043988185208,$blah
f,a,f-a,47,,0.9779444845768627,$null
f,b,f-b,44,,0.9106169537187105,$null
f,c,f-c,55,,0.6777644586233594,$null
f,j,f-j,56,0.22136720007399002,0.909387638427892,$null
f,k,f-k,-65,0.045346811013382116,0.23480003243132908,$null
f,l,f-l,-1,0.6704862188501712,0.5401924954289701,$null
f,o,f-o,-85,,,$null
f,p,f-p,64,,,$null
f,q,f-q,-83,0.5542077884611291,0.21595135191867476,$null
f,r,f-r,52,,,$null
f,s,f-s,69,0.866447888506801,0.7899846642347539,$null
f,y,f-y,29,0.09917846167904198,0.6547129575231422,$null
f,z,f-z,10,0.4515549159652815,0.3987301842569533,$null