condition mean min max 0 h after light 5.546665000000001 5.32049 5.77284 4 h after light 4.161804999999999 3.941 4.38261 8 h after light 7.156665 6.96783 7.3455 4 h after dark 9.00199 7.91198 10.092 8 h after dark 5.50786 5.10277 5.91295 12 h after dark 5.914065 4.49677 7.33136