Experiment	Measurement	Reference
LHCb	\([5.31 \pm 0.90\mbox{ (stat)} \pm 0.48\mbox{ (syst)} \pm 0.35\mbox{ (norm)}] \times 10^{-6}\)	Phys. Rev. D 93, 051101 (2016)
Average	\(\mathbf{[5.31 \pm 1.08\mbox{ (combined)}] \times 10^{-6}}\)