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).
Lila has been climbing in recent years. All-time it's been given to 159,060 U.S. babies, the 90th most common name by sound today, at an all-time high of 6,998 in 2025.
By sound, Lila also includes the spellings Lyla, Lilah, Lylah. Spellings sometimes heard the same way: Leilah.