In this paper Jose Felix Diaz de Tuesta analyses the data on the street use of Basque in Gipuzkoa in the light of the results for 2006. In the first part of the article the author not only analyses the results for 2006, he also presents the results gathered since 1989. The second part of the article is given over to analysing the factors that exert an influence on street use of Basque, and the author makes use of the results of the street measurement in Gipuzkoa in order to specify which the most influential factors are.