Experiment	Measurement	Reference
LHCb	\([14.0 \pm 1.2\mbox{ (stat)} ^{+1.1}_{-1.5}\mbox{ (syst)} ^{+1.1}_{-1.0}\mbox{ (fs/fd)}]\)	Nucl.Phys. B 867 (2013) 547-566
Average	\(\mathbf{[14.0 ^{+2.0}_{-2.2}\mbox{ (combined)}]}\)