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).
Miles is one of the fastest-rising names in America right now. All-time it's been given to 188,062 U.S. babies, the 27th most common name by sound today, peaking at 10,233 in 2024, with 9,614 in 2025.
By sound, Miles also includes the spellings Myles.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).