one key domains.json

{
  "rows": [
    {
      "key": "E",
      "ratio": "25/23",
      "integer_generator": 23,
      "five_year_generator": 115
    },
    {
      "key": "P",
      "ratio": "70/69",
      "integer_generator": 69,
      "five_year_generator": 345
    },
    {
      "key": "J",
      "ratio": "300/299",
      "integer_generator": 299,
      "five_year_generator": 1495
    }
  ],
  "joint_integer": 897,
  "joint_five_year": 4485
}