Experiment	Measurement	Reference
Belle	\([1.07 \pm 0.31\mbox{ (stat)} ^{+0.19}_{-0.33}\mbox{ (syst)}] \times 10^{-4}\)	PRL 97, 162002 (2006)
Average	\(\mathbf{[1.07 ^{+0.36}_{-0.45}\mbox{ (combined)}] \times 10^{-4}}\)