Experiment	Measurement	Reference
Belle	\([8.6 ^{+3.3}_{-2.6}\mbox{ (stat)} \pm 2.6\mbox{ (syst)}] \times 10^{-4}\)	PRL 91,262002 (2003)
BaBar	\([1.8 \pm 0.4\mbox{ (stat)} \pm 0.3\mbox{ (syst)} ^{+0.6}_{-0.4}\mbox{ (correlated systematic)}] \times 10^{-3}\)	PRL 93,181801 (2004)
Average	\(\mathbf{[10.8 \pm 3.5\mbox{ (combined)}] \times 10^{-4}}\)