Otto Porter Jr. has a usage of 18.3 percent without Bradley Beal in his career.

otto porter usage rate without bradley beal
NAMEGPUSG%MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Otto Porter Jr.Otto Porter Jr.11018.325.611.14.71.81.20.40.94.29.145.81.43.538.81.31.681.62,8151,21851919812839100212-35
StatMuse has game-level data for usage percentage going back to the 1984-85 season.