During the same period there were 6.21 million overnight trips taken in Wales with a total of 22.67 million nights and a total expenditure of £1.23 billion.
Yn ystod yr un cyfnod, roedd 6.21 miliwn o deithiau dros nos yng Nghymru gyda chyfanswm o 22.67 miliwn o nosweithiau a chyfanswm gwariant o £1.23 biliwn.