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).
Royce
Royce climbed for decades and has been a steadily popular name ever since. All-time it's been given to 35,698 U.S. babies, the 833rd most common name by sound today, peaking at 859 in 2021, with 626 in 2025.
By sound, Royce also includes the spellings Royse.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).