condition mean min max 0 h after light 0.203375 0.135745 0.271005 4 h after light 0.288365 0.276134 0.300596 8 h after light 0.0670295 0.0 0.134059 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0676605 0.0 0.135321