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).
Kaliyah climbed for decades and has been a steadily popular name ever since. All-time it's been given to 28,876 U.S. babies, the 568th most common name by sound today, peaking at 1,374 in 2025, with 1,374 in 2025.
By sound, Kaliyah also includes the spellings Kalia, Kaleah, Khalia, Caliyah.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).