The Amish are DOUBLING their population growth every 20 to 22 years on average.  No electricity.  Amazing.  Per the Young Center at Elizabethtown College who has been studying the Amish way of life for a long time.  Not to bad.  nostr:npub1e3mx09yq53gyh9368qyuhfstgk8t7p5vvfcnvgwa4994y7rqg37s20qvr5 
(Just an interesting factoid I came across).