condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.049031333333333336 0.0 0.147094 12 h after light 0.04224375 0.0 0.168975 3 h after dark 0.062143333333333335 0.0 0.18643 6 h after dark 0.0 0.0 0.0 9 h after dark 0.11319266666666666 0.0 0.339578 12 h after dark 0.0923145 0.0 0.184629