condition mean min max 0 h after light 13.25925 12.5762 13.9423 4 h after light 7.6940550000000005 6.95873 8.42938 8 h after light 7.0852900000000005 6.86826 7.30232 4 h after dark 7.85535 7.35847 8.35223 8 h after dark 8.181785 8.1589 8.20467 12 h after dark 9.449684999999999 7.46007 11.4393