condition mean min max 4 h after light 6.453060000000001 5.47318 7.43294 8 h after light 5.246074999999999 5.22997 5.26218 12 h after light 6.037495 5.74963 6.32536 4 h after dark 7.86515 7.36412 8.2366 8 h after dark 9.072483333333334 7.69739 10.2977 12 h after dark 5.947573333333334 5.7527 6.29766