condition mean min max 4 h after light 711.3589955 612.909011 809.80898 8 h after light 536.9643914999999 527.253486 546.675297 12 h after light 568.318762 495.0111 641.626424 4 h after dark 453.10503700000004 329.946672 576.263402 8 h after dark 369.53635499999996 275.484174 463.588536 12 h after dark 538.616672 538.616672 538.616672