{
  "1": {
    "2017": 10,
    "2018": 1,
    "2019": 1,
    "2020": 2,
    "2021": 1
  },
  "2": {
    "2018": 9,
    "2019": 9,
    "2020": 8,
    "2021": 9
  }
}