Signal yields

Region	$M(K^+K^-\pi^+)$ range	Sample	Events	$D_s^+$ signal fraction
	(MeV/$c^2$)
Signal	1947.5 - 1987.5	$\mu^-D_s^+$	1591	0.503 $\pm$ 0.014
		$e^- D_s^+$	706	0.503 $\pm$ 0.021
Sideband	1900 - 1930, 2005 -2035	$\mu^-D_s^+$	1181
		$e^- D_s^+$	535