apr11 1981 0.785 0.509 0.399 -0.169 -0.728 -0.781 -0.814 -0.797 -0.659 apr16 1981 0.259 0.292 0.182 -0.191 -0.060 0.117 -0.316 -0.703 -0.648 apr21 1981 0.311 0.832 0.766 0.279 -0.143 -0.606 -0.473 -1.026 -1.014 apr26 1981 0.088 0.314 0.138 -0.200 -0.517 -0.397 -0.426 -0.544 -0.846