Is There Any Point to the 12 Times Table

Exactly why do we use times tables at all? If learning tables up to 10 is good, then learning them up to 12 is better. The typical error if you know up to your 10 times table is 9.4%. But if you know up to your 12 times table, it is only 8.2%. 

http://blog.wolfram.com/2013/06/26/is-there-any-point-to-the-12-times-table/