Add size information to README.md

README.md

@@ -78,6 +78,23 @@ typically a link to a tar archive or git repository from which the project was b
 mapping to a specific package ecosystem that provides the source, such as Spack.
 6. `language` - This column indicates the source language that the module was compiled from.
 
+## Dataset Size
+
+| Langauge | Raw Size | License Constraints | Deduplicated + License Constraints |
+|----------|----------|---------------------|------------------------------------|
+| C/C++    | 124GB    | 47GB                | 31GB                               |
+| C        | N/A      | N/A                 | 3GB                                |
+| C++      | N/A      | N/A                 | 28GB                               |
+| Julia    | 201GB    | 179GB               | 153GB                              |
+| Swift    | 8GB      | 7GB                 | 7GB                                |
+| Rust     | 656GB    | 443GB               | 373GB                              |
+| Total    | 989GB    | 676GB               | 564GB                              |
+
+The raw size is the size obtained directly from building all the projects. The license constraints column
+shows the size per language after license information is taken into account. The last column shows the size
+when both license constraints and deduplication are taken into account, which is what is included in the
+dataset.
+
 ## Licensing
 
 The individual modules within the dataset are subject to the licenses of the projects that they come from. License