condition mean min max 3 h after light 0.0126866 0.0 0.0380598 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0075395 0.0 0.0226185 12 h after dark 0.0 0.0 0.0