condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0281644 0.0205005 0.0358283 12 h after light 0.01408686 0.00995012 0.0182236 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0