[
  {"id": "R01", "quantity": 42},
  {"id": "R02", "quantity": 3.14},
  {"id": "R03", "quantity": 100},
  {"id": "R04", "quantity": 0.5},
  {"id": "R05", "quantity": 7},
  {"id": "R06", "quantity": 2.718},
  {"id": "R07", "quantity": 999},
  {"id": "R08", "quantity": 1.0}
]