[{timeStamp:1675122960,usage:null,limit:2.7},{timeStamp:1675123020,usage:2.74,limit:2.7},{timeStamp:1675123080,usage:2.62,limit:2.7},{timeStamp:1675123140,usage:4.32,limit:2.7},{timeStamp:1675123200,usage:null,limit:2.7},{timeStamp:1675123260,usage:5.38,limit:2.7},{timeStamp:1675123320,usage:5.08,limit:2.7},{timeStamp:1675123380,usage:1.02,limit:2.7},{timeStamp:1675123440,usage:2.35,limit:2.7}]

db.collection.aggregate([{$sort:{t:-1}},{$limit:60},{$setWindowFields:{sortBy:{t:1},output:{pos:{$documentNumber:{}}}}},{$set:{remainder:{$mod:["$pos",5]}}},{$match:{remainder:1}},{$sort:{t:1}},{$unset:["pos","remainder"]}])