condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.20611533333333334 0.198051 0.213012 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.26320133333333334 0.24236 0.304873 6 h after dark 0.279178 0.0 0.837534 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0