| y1 | y2 | y3 | y4 |
x1 | 0.9864 | 0.9724 | 0.9884 | 0.9955 |
x2 | 0.9803 | 0.9683 | 0.9828 | 0.9950 |
x3 | 0.9965 | 0.9910 | 0.9948 | 0.9818 |
x4 | 0.9902 | 0.9813 | 0.9911 | 0.9908 |