condition mean min max 4 h after light 5.8921600000000005 3.84963 7.28364 8 h after light 5.746630000000001 1.58988 10.2725 12 h after light 5.574183333333333 3.91395 6.71828 4 h after dark 7.524536666666666 6.25883 8.3429 8 h after dark 6.997863333333333 5.25801 9.04284 12 h after dark 7.39453 7.08298 7.71132