Experiment	Measurement	Reference
BaBar	\([2.3 \pm 0.3\mbox{ (stat)} \pm 0.3\mbox{ (syst)} ^{+0.8}_{-0.5}\mbox{ (correlated systematic)}] \times 10^{-3}\)	PRL 93,181801 (2004)
Average	\(\mathbf{[2.3 ^{+0.9}_{-0.7}\mbox{ (combined)}] \times 10^{-3}}\)