condition mean min max 4 h after light 4.110695 3.47598 4.74541 8 h after light 3.04881 3.02658 3.07104 12 h after light 3.320365 3.30034 3.34039 4 h after dark 4.0768699999999995 2.75402 5.42 8 h after dark 5.8907799999999995 5.50048 6.23405 12 h after dark 5.32127 4.01864 6.98165