The Flemish NGO Kind en Gezin (Child and Family) has published figures that show that more than 50 % of the applications for adoption in Flanders came from gay or lesbian couples. A total of 577 adoption requests were filed and 294 of those were by lesbians and gays. The majority were lesbian couples who wanted to make the partner an official mother of the child(ren) of an earlier relationship of the other partner. Otherwise put: most adoptions have as main purpose to regularize an existing situation. This brings more protection for the child in case something happens with its previous single parent.
Gays can adopt since July 2006, so it is to be expected that the figures will drop once most gay families have regularized their situation. Adoption of foreign babies by gay couples is less frequent. A lot of third world countries don't want the children they put up for adoption to go to gay couples. It seems they think those children are better of in an orphanage or living on the streets than being lovingly cared for by parents of the same sex. The victims of this incomprehensible and backward mentality are of course not so much the gay couples whose opportunities to adopt are restricted, but the children whose future is jeopardized by this bigotry.