Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Emmett has climbed over the years and is holding near its high. All-time it's been given to 104,347 U.S. babies, the 202nd most common name by sound today, peaking at 4,419 in 2019, with 3,457 in 2025.
By sound, Emmett also includes the spellings Emmitt, Emmet, Emmit.