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).
Patricia is now well below its former popularity. All-time it's been given to 1,587,741 U.S. babies, the 1,755th most common name by sound today, peaking at 56,802 in 1951, with 167 in 2025.
By sound, Patricia also includes the spellings Patrica.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).