condition mean min max 0 h after light 0.103978 0.0 0.207956 4 h after light 0.102334 0.0 0.204668 8 h after light 0.105655 0.0 0.21131 4 h after dark 0.102341 0.0 0.204682 8 h after dark 0.154196 0.102223 0.206169 12 h after dark 0.050698 0.0 0.101396