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).
Cade has been climbing in recent years. All-time it's been given to 58,491 U.S. babies, the 348th most common name by sound today, peaking at 2,507 in 2001, with 2,351 in 2025.
By sound, Cade also includes the spellings Kade.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).