[
{Id: "1", Id2: "1", Year: "2019", Month: "1", Value: "123"},
{Id: "1", Id2: "1", Year: "2019", Month: "2", Value: "3"},
{Id: "1", Id2: "1", Year: "2019", Month: "3", Value: "-123"},
{Id: "1", Id2: "1", Year: "2019", Month: "4", Value: "-4123"},
...
{Id: "1", Id2: "1", Year: "2020", Month: "1", Value: "214"},
{Id: "1", Id2: "1", Year: "2020", Month: "2", Value: "-41123"},
{Id: "1", Id2: "1", Year: "2020", Month: "3", Value: "12344"},
{Id: "1", Id2: "1", Year: "2020", Month: "4", Value: "1232"}
]

[{
  Year : "2019",
    data : [{
      Month : "01",
      Value : "123"
    },{
      Month : "02",
      Value : "2223"
    }...
  },{
  Year : "2020",
    data: [{
       Month : "01",
       Value : "214"
    }...
}]