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).
Bryce is now well below its former popularity. All-time it's been given to 143,811 U.S. babies, the 545th most common name by sound today, peaking at 4,812 in 2000, with 1,037 in 2025.
By sound, Bryce also includes the spellings Brice.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).