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).
Carlos
Carlos was more common in the past and has since settled at a lower, steady level. All-time it's been given to 309,076 U.S. babies, the 299th most common name by sound today, peaking at 6,864 in 2001, with 2,418 in 2025.
Carlos has no common alternate spellings by sound.
Rising