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).
Bianca
Bianca was more common in the past and has since settled at a lower, steady level. All-time it's been given to 80,293 U.S. babies, the 865th most common name by sound today, peaking at 3,924 in 1990, with 608 in 2025.
By sound, Bianca also includes the spellings Bianka.
Rising