Fig. 9

Model system Eqs. (2)–(5) fitted to data for individuals under outpatient rehabilitation in Cape Town and projected for five more years. The blue circles indicate the actual data and the solid red line indicates the model fit to the data. The proportion of patients admitted under outpatient rehabilitation facilities in Cape Town is likely to continue increasing for the next five years, see also Fig. 6. The percentages are not of all users, but of those in rehabilitation