Experiment	Measurement	Reference
Belle	\([3.08 \pm 0.33\mbox{ (stat)} \pm 0.09\mbox{ (syst)} ^{+0.15}_{-0.02}\mbox{ (model)}] \times 10^{-4}\)	Experiment Note
Average	\(\mathbf{[3.08 ^{+0.37}_{-0.34}\mbox{ (combined)}] \times 10^{-4}}\)