Experiment	Measurement	Reference
Belle	\([2.45 \pm 0.42\mbox{ (stat)} ^{+0.35}_{-0.45}\mbox{ (syst)} ^{+0.39}_{-0.17}\mbox{ (model)}] \times 10^{-4}\)	Experiment Note
Average	\(\mathbf{[2.45 ^{+0.67}_{-0.64}\mbox{ (combined)}] \times 10^{-4}}\)