Experiment	Measurement	Reference
CDF	\([9.9 \pm 1.0\mbox{ (stat)} \pm 0.6\mbox{ (syst)} \pm 0.4\mbox{ (PDG)} \pm 0.5\mbox{ (EBR)}] \times 10^{0}\)	PRD 79, 032001 (2009)
Average	\(\mathbf{[9.9 \pm 1.3\mbox{ (combined)}] \times 10^{0}}\)