construction_stats.json

{
  "books": {
    "total": 231631,
    "thin_items": 2359,
    "null_descriptions": 13048
  },
  "movies": {
    "total": 62423,
    "empty_descriptions": 6952,
    "fallback_used": 6952
  },
  "songs": {
    "total": 72963,
    "artist_join_failures": 385
  },
  "total_items": 367017
}