condition mean min max 4 h after light 1.761675 1.60807 1.91528 8 h after light 1.73792 1.70524 1.7706 12 h after light 2.100165 2.04097 2.15936 4 h after dark 3.43295 3.4255 3.4404 8 h after dark 2.9776949999999998 2.89036 3.06503 12 h after dark 3.03044 2.84987 3.21101