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).
Tyler is now well below its former popularity. All-time it's been given to 630,020 U.S. babies, the 372nd most common name by sound today, peaking at 32,113 in 1994, with 1,750 in 2025.
By sound, Tyler also includes the spellings Tylor.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).