Experiment	Measurement	Reference
Belle	\([0.53 \pm 0.20\mbox{ (stat)} ^{+0.16}_{-0.15}\mbox{ (syst)}] \times 10^{-5}\)	Experiment Note
Average	\(\mathbf{[0.53 ^{+0.26}_{-0.25}\mbox{ (combined)}] \times 10^{-5}}\)