\hline MC & nominator  & den & $\epsilon_{\mathrm{trigger}}$ $\pm \sigma_{stat}}$ \\\hline
  ee & 3690 & 3952 &    0.934 $\pm$ 0.012       \\
  \mu\mu   & 2668 & 2734 &    0.976 $\pm$ 0.021       \\
  e\mu   & 6248 & 6819 &    0.916 $\pm$ 0.008       \\
  && RT    1.042 $\pm$ 0.016  $\pm$ 0.064     \\\hline