condition mean min max 0 h after light 2.1409849999999997 1.81846 2.46351 4 h after light 2.275615 2.17321 2.37802 8 h after light 2.92887 2.8221 3.03564 4 h after dark 3.636515 3.56555 3.70748 8 h after dark 3.84276 2.83302 4.8525 12 h after dark 1.59599 1.16536 2.02662