Experiment	Measurement	Reference
BaBar	\([0.88 \pm 0.20\mbox{ (stat)} \pm 0.14\mbox{ (syst)}] \times 10^{-2}\)	PRD 74 (2006) 031103
Average	\(\mathbf{[0.88 \pm 0.24\mbox{ (combined)}] \times 10^{-2}}\)