Would appear to be in the middle of a baby boom, with the largest number of births recorded since 1992. Figures from the Australian Bureau of Statistics revealed that 261,400 births were registered in 2005, 6,200 more than 2004. he Baby Boom of 1946 to 1964 in the United States (and similar years in Allied Mar 26 2009. Young males returning to the United States, Canada1964 ( 1947 to 1966 in Canada and 1946-1961 in Australia) is called the Baby Boom.