The interval census years 1961-1971 witnessed the first absolute decline in the number of individuals claiming Ukrainian as their mother tongue (361,496 to 309,860). The rate of decline has increased precipitously such that in 1981 there were 254,690 individuals who claimed Ukrainian as their mother tongue, while only 187,015 did so in 1991. The number of Ukrainian speakers in Canada continues to decline although less if only because of the change in the demographic structure of the Ukrainian ethnic group; the last post-war wave of immigrant native Ukrainian language speakers have largely disappeared as a significant statistical category. Consequently, in 1996, a total of 162,695 individuals claimed Ukrainian as their mother tongue, while in 2001 the number dropped, albeit at a lesser rate, to 148,085.