[
  {
    "band_width": 0.5,
    "near_expiry_unpinned": 0.1
  },
  {
    "band_width": 1.0,
    "near_expiry_unpinned": 0.3
  },
  {
    "band_width": 1.5,
    "near_expiry_unpinned": 0.45
  },
  {
    "band_width": 2.0,
    "near_expiry_unpinned": 0.6
  },
  {
    "band_width": 2.5,
    "near_expiry_unpinned": 0.8
  }
]