32% of all US Intervention episodes are about opioid addiction. 29% are about alcohol addiction.
Candy has conducted 33% of all Interventions (US). Jeff is right behind her at 31%.
California is the most represented state on Intervention, with 35.1% of all episodes. CA is followed by Texas (10.6%), Florida (9.3%), New York (7.3%) and Utah (6.6%)
You can see followups on a bunch of Intervention subjects by going to the Legacy Updates category. Most of those posts include links to the videos.