condition mean min max 0 h after light 0.0389084 0.0 0.0778168 2 h after light 0.03897755 0.0 0.0779551 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.6235165 0.621788 0.625245 2 h after dark 0.628808 0.560795 0.696821 4 h after dark 0.1538275 0.074792 0.232863 8 h after dark 0.0422032 0.0 0.0844064 12 h after dark 0.0830655 0.0 0.166131