The shrinking children of Japan

Number of children in Japan falls to record low for 29th year in row | The Japan Times Online

From the report:

In a report issued on the eve of Children's Day, a national holiday, the Internal Affairs and Communications Ministry said kids comprised 13.3 percent of the population as of April 1.

I wonder what the equivalent figure (for under 15 year olds) is in Australia.

Here we go - that just took one Google - it's at about 19%. I thought we might be higher than that.