Marijuana and meth are getting more popular in America, but cocaine has declined
Spending on the drugs reveals shifts in use and abuse
![money and marijuana](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/08/082219_cw_marijuana_feat_free.jpg?fit=1028%2C579&ssl=1)
Trends in drug use and spending are difficult to map. But a new analysis reveals that by 2016, users were spending more on marijuana than other drugs.
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