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).
Sheila
Sheila was more common in the past and has since settled at a lower, steady level. All-time it's been given to 294,006 U.S. babies, the 2,372nd most common name by sound today, peaking at 11,259 in 1962, with 65 in 2025.
By sound, Sheila also includes the spellings Shelia, Shiela, Sheilah.
Rising