condition mean min max 0 h after light 0.119362 0.0 0.238724 4 h after light 0.2353685 0.0 0.470737 8 h after light 0.3576835 0.243006 0.472361 4 h after dark 0.1760745 0.117692 0.234457 8 h after dark 0.0 0.0 0.0 12 h after dark 0.2358065 0.23321 0.238403