These figures update those of the census (2001), which showed that approximately 3% of the island's population spoke in their personal interactions, although research suggests that up to 15% of the population have some understanding of the language. The latest census figures also showed an increase in declarations of children speaking the language: the first such increase recorded in census figures (although this may be due to greater consciousness among parents than to language use), doubtless encouraged by the introduction of a teaching programme into Jersey schools.