condition mean min max 4 h after light 0.6104700000000001 0.490163 0.730777 8 h after light 0.9574389999999999 0.850788 1.06409 12 h after light 1.435565 1.34084 1.53029 4 h after dark 2.1040733333333335 1.42992 2.65938 8 h after dark 1.4581933333333332 1.24355 1.83162 12 h after dark 0.640281 0.187526 1.00255