condition mean min max 4 h after light 7.049756666666666 4.01207 9.97421 8 h after light 4.71004 1.21706 8.04058 12 h after light 6.151696666666666 3.51473 9.57476 4 h after dark 10.026 7.3295 11.7035 8 h after dark 11.13503 7.52599 13.7551 12 h after dark 11.35916 7.94718 15.6074