condition mean min max 3 h after light 0.747046 0.608991 0.841863 6 h after light 0.6017876666666667 0.447705 0.701472 9 h after light 0.6078776666666666 0.367051 1.04965 12 h after light 0.537842 0.19666 1.11599 3 h after dark 0.867475 0.399382 1.24315 6 h after dark 0.908559 0.730503 1.24826 9 h after dark 1.5757796666666666 0.940519 2.27563 12 h after dark 2.038255 1.66459 2.41192