condition mean min max 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 4 h after dark 0.007183033333333334 0.0 0.0215491 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0