如何每年存储geojson数据

Question

我有GeoJSON数据类型Point。我需要每年保存此数据。我能否将GeoJSON数据的价值作为2019年的关键要素？还可以将Year添加为键将其存储在MongoDB中作为GeoJSON吗？

{
   "type": "FeatureCollection",
   "features": [
  {
    "type": "Feature",
    "geometry": {
       "type": "Point",
       "coordinates":  [ -84.948674,40.658322 ]
    },
    "properties": {
    "County":"Adams",
    "StopName":"Berne County ",
    "DateCompleted":"08.07.2019 "
    }
  },
  {
    "type": "Feature",
    "geometry": {
       "type": "Point",
       "coordinates":  [ -85.054285,41.081241 ]
    },
    "properties": {
    "County":"Allen",
    "StopName":"Multiple events ",
    "DateCompleted":"02.19.2019 "
    }
  }]
}

以2019年为关键的JSON数据

{ "2019":{
   "type": "FeatureCollection",
   "features": [
  {
    "type": "Feature",
    "geometry": {
       "type": "Point",
       "coordinates":  [ -84.948674,40.658322 ]
    },
    "properties": {
    "County":"Adams",
    "StopName":"Berne County Chamber Luncheon",
    "DateCompleted":"08.07.2019 "
    }
  }]
}