Experiment	Measurement	Reference
Belle	\([1.95 \pm 0.34\mbox{ (stat)} \pm 0.38\mbox{ (syst)} ^{+0.32}_{-0.02}\mbox{ (model)}] \times 10^{-4}\)	Experiment Note
Average	\(\mathbf{[1.95 ^{+0.60}_{-0.51}\mbox{ (combined)}] \times 10^{-4}}\)