Perforation Variety - Beads of Sarawak 2001

On Feberuary 17, 2001, Pos Malaysia released a set of four stamps on topic of Beads of Sarawak and Sabah. The stamps were printed in a format block-of-4 with 100 stamps forming a sheet. Two types of perforation were recorded - P13.5 (to be precise P13.75x13.5) and P14x14.5 (to be precise P14.25x14.75). I have got no idea which one is less common, but SG catalogue gives P13.5 a higher price.

P13.5
P14x14.5