condition mean min max 0 h after light 0.0757145 0.0 0.151429 4 h after light 0.151798 0.149301 0.154295 8 h after light 0.231219 0.0 0.462438 4 h after dark 0.29832749999999997 0.148723 0.447932 8 h after dark 0.299535 0.298278 0.300792 12 h after dark 0.300805 0.147932 0.453678