The answer:
7.1%
https://rhesusnegative.net/themission/bloodtypefrequencies/
Genetics
Y-DNA
A 2012 study found that haplogroups R1b, J2, and T were the most notable haplogroups among Armenians.
MtDNA
Most notable mtDNA haplogroups among the Armenian samples are H, U, T, J, K and X while the rest of remaining Mtdna of the Armenians are HV, I, X, W, R0 and N.
That blood type distribution/frequency chart seems very accurate because there is one in Wikipedia which contains very old data.
The percentage of RH negatives seems to go down… Mr. Dammann: you have to breed yourself!