A whopping 16,000 value changes were made in Volume 5. Leading the way is Poland, with more than 4,500 changes. There are dramatic increases among the early issues through 1921.
Increases can also be found in New Zealand for issues up to the 1950s. More than 1,200 value changes were made for Norfolk Island. The most notable increases can be found among various topical issues, particularly those depicting birds and sea creatures such as whales.
Other countries with significant value changes include St. Helena (1,156), St. Lucia (978) and Papua New Guinea (722).