Experiment	Measurement	Reference
Belle	\([3.2 ^{+1.8}_{-0.9}\mbox{ (stat)} ^{+5.3}_{-1.6}\mbox{ (syst)}] \times 10^{-5}\)	PRD 80, 031104(R) (2009)
BaBar	\([1.9 \pm 0.8\mbox{ (stat)}] \times 10^{-5}\)	PRD 79 112001 (2009)
Average	\(\mathbf{[1.9 \pm 0.8\mbox{ (combined)}] \times 10^{-5}}\)