condition mean min max 4 h after light 0.03085835 0.0 0.0617167 8 h after light 0.0 0.0 0.0 12 h after light 0.0294055 0.0 0.058811 4 h after dark 0.02544865 0.0 0.0508973 8 h after dark 0.02467165 0.0 0.0493433 12 h after dark 0.0 0.0 0.0