condition mean min max 0 h after light 11.853950000000001 11.5731 12.1348 4 h after light 4.79139 4.63825 4.94453 8 h after light 4.496755 4.0456 4.94791 4 h after dark 7.290285 6.51666 8.06391 8 h after dark 7.93693 7.67471 8.19915 12 h after dark 9.172225000000001 6.63275 11.7117