Experiment	Measurement	Reference
Belle	\([1.42 \pm 0.11\mbox{ (stat)} ^{+0.16}_{-0.20}\mbox{ (syst)}] \times 10^{-6}\)	PRL 97, 162003 (2006)
BaBar	\([1.8 ^{+0.3}_{-0.2}\mbox{ (stat)} \pm 0.2\mbox{ (syst)}] \times 10^{-6}\)	PRD 72 051101 (2005)
Average	\(\mathbf{[1.53 \pm 0.18\mbox{ (combined)}] \times 10^{-6}}\)