condition mean min max 4 h after light 1.1230660000000001 0.348576 2.10657 8 h after light 0.730094 0.252869 1.2365 12 h after light 0.905484 0.387282 1.32739 4 h after dark 1.088826 0.722296 1.55786 8 h after dark 1.259238 0.931044 1.79847 12 h after dark 1.1962866666666667 1.0076 1.45763