From the Guardian’s Data Blog: 

The death of Amy Winehouse, widely reported as due to a suspected drug overdose, has drawn attention to drug misuse across the country. How bad are the figures? 

This Google Fusion Tables map, posted by James Ball and Simon Rogers, shows drug poisoning per 100,000 population, with darker shades representing higher rates:

This stack graph, made with the Google’s Chart Tools API, shows misuse over time (view interactive version): 

Download the data