condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.029034533333333334 0.0 0.0871036 12 h after light 0.0254989 0.0 0.0764967 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0