condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.056972 0.0 0.113944 4 h after light 0.0846391 0.0577852 0.111493 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0