Experiment	Measurement	Reference
BaBar	\([12.3 \pm 1.2\mbox{ (stat)} \pm 0.8\mbox{ (syst)}] \times 10^{-2}\)	PRD 78, 112003 (2008)
Average	\(\mathbf{[12.3 \pm 1.4\mbox{ (combined)}] \times 10^{-2}}\)