condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0831347 0.0566454 0.109624 8 h after light 0.0565905 0.0 0.113181 4 h after dark 0.1368225 0.109199 0.164446 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0