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).
Adam
Adam has been easing down from its peak but is still widely used. All-time it's been given to 582,453 U.S. babies, the 214th most common name by sound today, peaking at 24,081 in 1984, with 3,511 in 2025.
Adam has no common alternate spellings by sound.
Rising