20.2 MPG across all 82 games. He's ranked 9th in the NBA among rookies in total MP.
And in the 1654 minutes he played that season, he's had more of an impact than Andrew Wiggins' 2969 minutes. Despite being 9th among Rookies in MP, Nikola tops all rookies in Offensive Win Shares, 2nd among rookies in Defensive Win Shares and tops them all in overall Win Shares.
On the Chicago Bulls (a winning team), even though he's ranked only 7th in MP, he's 3rd in Offensive Win Shares, 4th in Defensive Win Shares and 3rd in overall Win Shares.
Andrew Wiggins over the course of 82 games is ranked 2nd in Win Shares on the Timberwolves but he's played the most minutes. By the minute, the Timberwolves (the worst team in the NBA!) average a better win share than him. Post-All-Star Break is different.
Overall, Nikola has had the bigger impact in his rookie season. And has made a big impact on the Chicago Bulls. But he's Chicago's 9th man, 7th man at best. He hasn't benefited from the same opportunities that Andrew Wiggins was handed. And Andrew Wiggins tops the PPG charts, has some nifty moves and he's athletic. So it is what it is.
If you had two employees at your company. One of them a full-time employee working 40 hours/week whose productivity was below-average and a part-time employee working 22 hrs/week who was more productive in 22 hours than your full-time employee was in 40 hours, who do you think is going to win Employee of the Year? In the real world, the full-time employee probably would have got canned before he ever had a chance to improve. Not saying that the Timberwolves should trade Andrew Wiggins. Basketball GMs have more patience with rookies than managers have with entry-level staff. As they should. But he's not deserving of Rookie of the Year either.