{
  "2": {
    "2016-06-09": 1,
    "2019-12-01": 1,
    "2026-05-01": 1
  },
  "3": {
    "2024-11-30": 1,
    "2029-04-30": 1
  },
  "4": {
    "2021-02-28": 1
  }
}