If you're curious why; Jewish immigration has slowed down to a crawl, most Jews who want to move to Israel already have, in fact there's actually net emigration to the west. If Israel wants to increase it's population it either has to find a way to convince American Jews (us has almost as many Jews as Israel) to move or Israelis to have more kids.

Edit: source http://jppi.org.il/uploads/Jewish_Demographic_Policies.pdf