condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.1444779 0.0509557 0.274084 12 h after light 0.291329 0.037873 0.475832 4 h after dark 0.16853166666666666 0.0 0.505595 8 h after dark 0.20647500000000002 0.0 0.398307 12 h after dark 0.03722433333333333 0.0 0.111673