Time and punishment in 'Measure for Measure.'

When Claudio is arrested he complains to Lucio:

this new governor Awakes me all the enrolled penalties Which have, like unscour'd armour, hung by th' wall So long, that nineteen zodiacs have gone round, And none of them been worn. (I.ii.154-8)(1)

In the next scene, the Duke, Vincentino, tells the Friar:

We have strict statutes and most biting laws, The needful bits and curbs to headstrong jades, Which for this fourteen years we have let slip. (I.iii.19-21)(2)

J.W. Lever, in his Arden edition, notes that `the discrepancy may be due to a confusing of the figures 4 and 9; or Shakespeare may simply have made similar comments. The compilers of the Textual Companion to the Complete Oxford Shakespeare remark that:

The inconsistency . . .is scarcely likely to be deliberate, as it is pointless. In view of the graphic similarity of the numbers, in arabic or, more particularly, roman numerals, it is …