condition mean min max 0 h after light 0.669349 0.446763 0.891935 4 h after light 0.8941079999999999 0.8794 0.908816 8 h after light 0.8951845 0.882433 0.907936 4 h after dark 1.096723 0.879456 1.31399 8 h after dark 0.662536 0.439223 0.885849 12 h after dark 0.0 0.0 0.0