According to WolframAlpha, my name, Michael is the single most common name in the US 3.95 million people, 1 in 61 (and the most common age to have my name is 54 year olds). It was extremely popular to name your child that from 1935-ish to 1990-ish, peaking at the late 1960's with almost 1 in 20 babies given that name. Now, many babies are being named, Isabella, Jacob, Sophia, Ethan and Emma. so if you want your kid to have an original name, please don't pick those.
(no, I did not do extensive research into the topic, it took me 5 minutes at wolframalpha to get this.)