clicks: [  0  40  78 201 305 304 264 232 206 175 107  84  94  62  50  36  25  32  14  14]
clicks + skips:[  0  75 188 352 481 485 422 349 304 231 153 127 122  83  64  58  32  37 20  18]
clicks / (clicks + skips)
[        nan  0.53333333  0.41489362  0.57102273  0.63409563  0.62680412
  0.62559242  0.66475645  0.67763158  0.75757576  0.69934641  0.66141732
  0.7704918   0.74698795  0.78125     0.62068966  0.78125     0.86486486
  0.7         0.77777778]