Avery Bradley had a 19.9 usage percentage without Jae Crowder in 2014-15.

avery bradley usage when jae crowder is out 2015
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NAMESEASONTMGPUSG%MPGPPGRPGAPGSPGBPGTPGFGMFGAFG%3PM3PA3P%FTMFTAFT%MINPTSREBASTSTLBLKTOVPF+/-
Avery BradleyAvery Bradley2014-15BOSBOS2319.930.312.72.41.20.80.31.05.312.443.21.34.329.60.81.081.869629356281962449+30
StatMuse has game-level data for usage percentage going back to the 1984-85 season.