condition mean min max 4 h after light 0.5159225000000001 0.447079 0.584766 8 h after light 0.6297755 0.617429 0.642122 12 h after light 0.7526185000000001 0.560134 0.945103 4 h after dark 0.876103 0.855837 0.896369 8 h after dark 1.3151899999999999 1.28593 1.34445 12 h after dark 1.160888 0.832436 1.48934