condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.1608465 0.140565 0.181128 12 h after light 0.1428945 0.108834 0.176955 4 h after dark 0.16158499999999998 0.141169 0.182001 8 h after dark 0.01420395 0.0 0.0284079 12 h after dark 0.030435000000000004 0.0275179 0.0333521