condition mean min max 4 h after light 11.4297965 9.918354 12.941239 8 h after light 9.7180605 9.517767 9.918354 12 h after light 9.918354 9.918354 9.918354 4 h after dark 10.199894 9.900072 10.499716 8 h after dark 9.624363500000001 9.330373 9.918354 12 h after dark 8.879892 8.879892 8.879892