Experiment	Measurement	Reference
Belle	\([1.86 \pm 0.65\mbox{ (stat)} \pm 0.60\mbox{ (syst)} ^{+0.80}_{-0.52}\mbox{ (model)}] \times 10^{-4}\)	Experiment Note
Average	\(\mathbf{[1.86 ^{+1.19}_{-1.03}\mbox{ (combined)}] \times 10^{-4}}\)