[{"_id":ObjectId("60096afd7568e5a724966237"),"title":"One Hospitals","createdAt":ISODate("2021-01-21T11:52:29.215Z")},{"_id":ObjectId("605492c632016f7bdd74c282"),"title":"Customer-5","createdAt":ISODate("2021-07-19T12:02:14.134Z")},{"_id":ObjectId("60eeb32209434f1b24aff594"),"title":"UTR-007-HealthEndpoints","createdAt":ISODate("2021-07-14T09:49:22.521Z")},{"_id":ObjectId("613a515cb24382575e7e766b"),"title":"UTR-004-005-Team","createdAt":ISODate("2021-09-09T18:24:28.942Z")},{"_id":ObjectId("61605c5192467e75213a4374"),"title":"UTR-004-005-GC-Team","createdAt":ISODate("2021-10-08T14:57:21.375Z")},{"_id":ObjectId("61826734c82e4e52c4663e1f"),"title":"Two Registry","createdAt":ISODate("2021-11-03T10:40:52.611Z")},{"_id":ObjectId("61b090976a08dda345c15fb2"),"title":"Api Customer","createdAt":ISODate("2021-12-08T11:01:43.011Z")}]

db.collection.aggregate([{$match:{$and:[{"createdAt":{$gte:ISODate("2021-07-01")}},{"createdAt":{$lte:ISODate("2021-12-31")}}],}},{$group:{_id:{$dateToString:{"date":"$createdAt","format":"%Y-%m"}},Count:{$sum:1},}}])