condition mean min max 4 h after light 0.00719115 0.0036175 0.0107648 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.006616576666666667 0.0 0.0129709 12 h after dark 0.0 0.0 0.0