condition mean min max 4 h after light 0.016312585 0.00733227 0.0252929 8 h after light 0.00800745 0.0 0.0160149 12 h after light 0.00518915 0.0 0.0103783 4 h after dark 0.015603833333333332 0.0 0.0329678 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0022755 0.0 0.0068265