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).
Crew has been climbing in recent years. All-time it's been given to 19,390 U.S. babies, the 363rd most common name by sound today, peaking at 2,377 in 2024, with 2,157 in 2025.
By sound, Crew also includes the spellings Krew, Crue.