condition mean min max 0 h after light 4.128385 3.26826 4.98851 2 h after light 6.600435 6.43627 6.7646 4 h after light 5.58081 5.47481 5.68681 8 h after light 5.313665 4.41554 6.21179 12 h after light 5.75786 5.51923 5.99649 2 h after dark 5.805155 5.53003 6.08028 4 h after dark 5.386955 4.39216 6.38175 8 h after dark 4.22386 3.77144 4.67628 12 h after dark 4.4101 3.45532 5.36488