In addition to what the other commenter said, it's also worth breaking alcohol out into it's own statistic since it occupies a different place culturally and in

In addition to what the other commenter said, it's also worth breaking alcohol out into it's own statistic since it occupies a different place culturally and in people's minds than other drugs. Combining them would just muddle the waters, and make it even harder to make a good argument as to how dangerous alcohol is.