condition mean min max 3 h after light 5.822303333333333 4.92203 6.55666 6 h after light 6.77635 6.29521 7.07504 9 h after light 8.72266 7.38519 9.69769 12 h after light 11.8378125 9.49165 13.3028 3 h after dark 15.293366666666667 14.3726 16.0138 6 h after dark 13.564333333333334 11.9648 15.3518 9 h after dark 11.6446 10.4845 13.0358 12 h after dark 8.877715 7.54343 10.212