condition mean min max 0 h after light 0.885335 0.775445 0.995225 4 h after light 1.217525 1.12673 1.30832 8 h after light 0.61278 0.43761 0.78795 4 h after dark 1.197652 0.868834 1.52647 8 h after dark 1.036004 0.329478 1.74253 12 h after dark 1.254335 1.10432 1.40435