diff --git a/data_analysis/tests/data/sample_run_data.json b/data_analysis/tests/data/sample_run_data.json
new file mode 100644
index 0000000..b414c9f
--- /dev/null
+++ b/data_analysis/tests/data/sample_run_data.json
@@ -0,0 +1,32 @@
+[
+  {
+    "policy_hash": "a1b2c3d4",
+    "warn_rate": 0.12,
+    "unknown_rate": 0.03,
+    "delta_time": 0.45
+  },
+  {
+    "policy_hash": "e5f6g7h8",
+    "warn_rate": 0.20,
+    "unknown_rate": 0.05,
+    "delta_time": 0.60
+  },
+  {
+    "policy_hash": "i9j0k1l2",
+    "warn_rate": 0.08,
+    "unknown_rate": 0.02,
+    "delta_time": 0.35
+  },
+  {
+    "policy_hash": "m3n4o5p6",
+    "warn_rate": 0.15,
+    "unknown_rate": 0.04,
+    "delta_time": 0.55
+  },
+  {
+    "policy_hash": "q7r8s9t0",
+    "warn_rate": 0.10,
+    "unknown_rate": 0.01,
+    "delta_time": 0.40
+  }
+]
\ No newline at end of file