condition mean min max 4 h after light 0.00685695 0.0 0.0137139 8 h after light 0.02045325 0.0 0.0409065 12 h after light 0.0312939 0.0 0.0625878 4 h after dark 0.0 0.0 0.0 8 h after dark 0.012470966666666666 0.0 0.0374129 12 h after dark 0.0 0.0 0.0