How rare is that?
đ¯ Born a twin
1 in 33 of US births
About 3 of every 100 US births are in this group. Twice as common as in 1980.
Each figure stands for one percent of the group. The share is a rounded estimate from public surveys and published studies; the group it refers to is "US births", which is not always the whole world.
Tick it on the Ladder â and combine it with everything else about you