condition mean min max 4 h after light 0.05797285 0.0388492 0.0770965 8 h after light 0.0 0.0 0.0 12 h after light 0.0254955 0.0 0.050991 4 h after dark 0.03359985 0.0 0.0671997 8 h after dark 0.0252567 0.0 0.0505134 12 h after dark 0.0 0.0 0.0