condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 2.000795 1.20339 2.7982 8 h after light 0.7721625 0.301885 1.24244 4 h after dark 0.150433 0.0 0.300866 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0