condition mean min max 4 h after light 191.785411 157.384344 226.186478 8 h after light 198.6257555 178.851582 218.399929 12 h after light 204.82681 189.30898 220.34464 4 h after dark 150.2208005 119.096551 181.34505 8 h after dark 112.469266 77.250514 147.688018 12 h after dark 146.070305 146.070305 146.070305