condition mean min max 0 h after light 0.2934345 0.117034 0.469835 4 h after light 0.5295115 0.378624 0.680399 8 h after light 0.2641125 0.108074 0.420151 4 h after dark 0.3140505 0.0 0.628101 8 h after dark 0.184087 0.104563 0.263611 12 h after dark 0.315192 0.259292 0.371092