condition mean min max 0 h after light 0.6166645 0.410621 0.822708 4 h after light 1.3788399999999998 0.94465 1.81303 8 h after light 1.8692015 0.812493 2.92591 4 h after dark 0.9420525 0.539835 1.34427 8 h after dark 1.218345 1.21323 1.22346 12 h after dark 1.0132645 0.956829 1.0697