This API call supports the following:
- Fetch data via ./proportion-of-population-spending-more-than-10-percent-of-household-consumption-or-income-on-out-of-pocket-health-care-expenditure-percent/data
- Access metadata via ./proportion-of-population-spending-more-than-10-percent-of-household-consumption-or-income-on-out-of-pocket-health-care-expenditure-percent/metadata