condition mean min max 4 h after light 1229.8505553333334 1095.485 1447.263333 8 h after light 1019.3488886666667 919.22 1127.133333 12 h after light 968.39 768.33 1200.87 1.5 h after dark 1092.0966667666667 894.62 1483.446667 5.5 h after dark 1398.1255556666665 1160.456667 1521.06 9.5 h after dark 1369.551111 1104.79 1650.55