diff --git a/completion.py b/completion.py
index e8484e34e..53c5af845 100644
--- a/completion.py
+++ b/completion.py
@@ -6,6 +6,7 @@
 import git
 import urllib3
 from potodo import potodo
+from potodo.arguments_handling import Filters
 
 
 @cache
@@ -19,7 +20,9 @@ def branches_from_peps() -> list[str]:
     ]
 
 
-def get_completion(clones_dir: str, repo: str) -> tuple[float, str, float]:
+def get_completion(
+    clones_dir: str, repo: str
+) -> tuple[float, float, str, float, float]:
     clone_path = Path(clones_dir, 'translations', repo)
     for branch in branches_from_peps() + ['master', 'main']:
         try:
@@ -33,12 +36,18 @@ def get_completion(clones_dir: str, repo: str) -> tuple[float, str, float]:
         else:
             break
     path_for_merge = Path(clones_dir, 'rebased_translations', repo)
-    completion = potodo.merge_and_scan_paths(
+    project = potodo.merge_and_scan_paths(
         [clone_path],
         pot_path=Path(clones_dir, 'cpython/Doc/build/gettext'),
         merge_path=path_for_merge,
         api_url='',
-    ).completion
+    )
+    completion = project.completion
+    project.filter(
+        filters=Filters(False, True, 0, 100, False, False),
+        exclude=['**/*', '!bugs.po', '!tutorial/', '!library/functions.po'],
+    )
+    core_completion = project.completion
 
     if completion:
         # Fetch commit from before 30 days ago and checkout
@@ -51,16 +60,24 @@ def get_completion(clones_dir: str, repo: str) -> tuple[float, str, float]:
         else:
             clone_repo.git.checkout(commit.hexsha)
             with TemporaryDirectory() as tmpdir:
-                month_ago_completion = potodo.merge_and_scan_paths(
+                project = potodo.merge_and_scan_paths(
                     [clone_path],
                     pot_path=Path(clones_dir, 'cpython/Doc/build/gettext'),
                     merge_path=Path(tmpdir),
                     api_url='',
-                ).completion
+                )
+                month_ago_completion = project.completion
+                project.filter(
+                    filters=Filters(False, True, 0, 100, False, False),
+                    exclude=['**/*', '!bugs.po', '!tutorial/', '!library/functions.po'],
+                )
+                month_ago_core_completion = project.completion
             clone_repo.git.checkout(branch)  # restore the original state
     else:
         month_ago_completion = 0.0
+        month_ago_core_completion = 0.0
 
     change = completion - month_ago_completion
+    core_change = core_completion - month_ago_core_completion
 
-    return completion, branch, change
+    return core_completion, completion, branch, core_change, change
diff --git a/generate.py b/generate.py
index 2a8292b56..5f345013a 100644
--- a/generate.py
+++ b/generate.py
@@ -59,17 +59,21 @@ def get_project_data(
 ) -> 'LanguageProjectData':
     built = language.code in languages_built
     if repo:
-        completion, branch, change = get_completion(clones_dir, repo)
+        core_complation, completion, branch, core_change, change = get_completion(
+            clones_dir, repo
+        )
     else:
-        completion = 0.0
-        change = 0.0
+        core_complation = completion = 0.0
+        core_change = change = 0.0
         branch = ''
 
     return LanguageProjectData(
         language,
         repo,
         branch,
+        core_complation,
         completion,
+        core_change,
         change,
         built,
         translated_name=languages_built.get(language.code, ''),
@@ -83,7 +87,9 @@ class LanguageProjectData:
     language: Language
     repository: str | None
     branch: str
+    core_completion: float
     completion: float
+    core_change: float
     change: float
     built: bool
     translated_name: str