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).
Lane has been climbing in recent years. All-time it's been given to 78,324 U.S. babies, the 341st most common name by sound today, peaking at 2,404 in 2021, with 2,245 in 2025.
By sound, Lane also includes the spellings Layne, Laine.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).