condition mean min max 0 h after light 6.452095 4.83368 8.07051 4 h after light 5.66631 4.76574 6.56688 8 h after light 10.476579999999998 8.20066 12.7525 4 h after dark 16.65305 14.2419 19.0642 8 h after dark 7.16761 6.40093 7.93429 12 h after dark 9.531705 8.04531 11.0181