1990 Cavs lead the league with 10.3 attempts per game

2003 Cavs were second to last with 9.6 attempts per game

To make a similar comparison, the 2010 league leader was the Orlando Magic at 27.3 attempts per game. The 2023 Bulls are last in the league to this point but are shooting 28.9 attempts per game.

https://www.basketball-reference.com/leagues/NBA_2023.html