Same number. I have one sibling*. I have two kids. (My sister also has 2.)
*My mom came from a big family. She was one of 6. She was second oldest/oldest girl. She feels like she ended up parenting her younger siblings (my grandma was...um... not the best) so she had no desire to have a lot of kids. I think that was partly because she'd been there/done that... and because she wanted to have few enough kids that she could give them the attention they deserved. And she has been a great mom. (I'm lucky to have her. She's 82 now and she has been a great mom.)