condition mean min max 2 h after light 472.87016666666665 332.872 568.665 6 h after light 501.8813333333333 381.295 584.685 10 h after light 534.3496666666666 359.501 630.492 14 h after light 693.22 490.052 921.93 18 h after light 727.9055 415.049 951.347 2 h after dark 693.5555 571.318 763.738