condition mean min max 0 h after light 0.1387245 0.0 0.277449 2 h after light 0.2517045 0.0 0.503409 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.203705 0.0 0.40741 4 h after dark 0.156073 0.0 0.312146 8 h after dark 0.647535 0.0 1.29507 12 h after dark 0.0 0.0 0.0