condition mean min max 4 h after light 1.079421 0.551394 1.70097 8 h after light 0.8265726666666666 0.281501 1.45193 12 h after light 1.3396846666666666 0.928084 1.97657 4 h after dark 2.02401 1.71366 2.18685 8 h after dark 1.7419466666666665 1.44425 2.0685 12 h after dark 1.33701 1.27196 1.40098