$63 an oz for cocaine that's a typo that must be the cost per gram. I just watched narcos on Netflix a kilogram in 1975 was worth like $35,000 and there are 35 oz in a kg.
Yes it is per gram. Just below the text mentioning the $63 is a sideways histogram showing price per gram. The largest bin is $50 - $99 per gram.
https://atlas.qz.com/i/atlas_4kISXhx5.png
