How to read the band →
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).
Stacy
Stacy was more common in the past and has since settled at a lower, steady level. All-time it's been given to 412,856 U.S. babies, the 1,587th most common name by sound today, peaking at 21,909 in 1971, with 206 in 2025.
By sound, Stacy also includes the spellings Stacey, Stacie, Staci.
Rising