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).
Liliana climbed for decades and has been a steadily popular name ever since. All-time it's been given to 117,940 U.S. babies, the 164th most common name by sound today, peaking at 5,101 in 2012, with 4,294 in 2025.
By sound, Liliana also includes the spellings Lilliana, Lilyana, Lillianna, Lillyana.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).