condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.027325866666666667 0.0 0.0819776 4 h after dark 0.029035066666666665 0.0 0.0871052 8 h after dark 0.022873766666666667 0.0 0.0686213 12 h after dark 0.0 0.0 0.0