condition mean min max 0 h after light 0.668433 0.581832 0.755034 4 h after light 0.892896 0.572632 1.21316 8 h after light 0.7581995 0.71826 0.798139 4 h after dark 1.143646 0.855622 1.43167 8 h after dark 1.538305 1.21757 1.85904 12 h after dark 0.9484969999999999 0.765964 1.13103