(By Jakob Lesage): "Are any multiples of 10 starting from 30 formed with a decimal base? e.g. 30 = 3x10, 40 = 4x10, etc. Or are expressions between these decimals (30-40, 40-50 etc.) formed as 30+1, 30+2, .., 30+9 etc.? The coding should reflect the earliest attested (i.e. not merely inferred) stage so if a pre-borrowing stage is attested, this should be coded."