condition mean min max 0 h after light 9.34721 7.22092 11.4735 2 h after light 5.51229 3.89025 7.13433 4 h after light 4.632655 2.6903 6.57501 8 h after light 6.097175 5.08487 7.10948 12 h after light 7.208835 6.55953 7.85814 2 h after dark 7.1549949999999995 3.95159 10.3584 4 h after dark 7.586735 6.69073 8.48274 8 h after dark 7.28603 5.9562 8.61586 12 h after dark 9.229985 8.85581 9.60416