Add number of grantees (to search)

[chadokruse]

User feedback:

I also love that you list the median grant size on the web page - it would also be nice to know how many grants are given out each year, as well as the total amount of giving per year. If an org has an average grant size of $100,000 thats awesome - until I learn they only give out two grants a year, and it's to the same two orgs they've supported for ten years. In that same vein, I suppose, it'd be amazing to be able to filter how many grants or percentage of grants that are given to organizations they've previously supported in the past versus new organizations, since especially for family foundations it's super common to just support the same ten organizations year after year, and that'll also diminish the chances of receiving funding for a new org.

Possible TODOs

• Profiles: Add # grantees to summary
• Search: ???