condition mean min max 3 h after light 0.789376 0.629745 0.961932 6 h after light 0.969664 0.797904 1.1128 9 h after light 1.300655 0.920935 1.91951 12 h after light 0.8575865 0.261427 1.32254 3 h after dark 0.492265 0.244714 0.84299 6 h after dark 0.5037136666666667 0.280112 0.649518 9 h after dark 0.361365 0.285833 0.502977 12 h after dark 0.460318 0.150009 0.770627