condition mean min max 0 h after light 0.7180275 0.664489 0.771566 2 h after light 1.17319 1.13364 1.21274 4 h after light 1.247595 1.08405 1.41114 8 h after light 1.708534 0.982748 2.43432 12 h after light 2.950825 2.78973 3.11192 2 h after dark 2.273985 1.98585 2.56212 4 h after dark 2.32813 2.28322 2.37304 8 h after dark 1.531685 1.41746 1.64591 12 h after dark 0.6320245 0.603977 0.660072