Experiment	Measurement	Reference
LHCb	\([12.7 \pm 1.1\mbox{ (stat)} ^{+0.5}_{-0.1}\mbox{ (syst)} ^{+1.0}_{-0.9}\mbox{ (fs/fd)}]\)	Nucl.Phys. B 867 (2013) 547-566
Average	\(\mathbf{[12.7 ^{+1.6}_{-1.4}\mbox{ (combined)}]}\)