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).
Gary is now well below its former popularity. All-time it's been given to 953,287 U.S. babies, the 1,644th most common name by sound today, peaking at 40,653 in 1952, with 216 in 2025.
By sound, Gary also includes the spellings Garry.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).