pop first, not last
diff --git a/collector.py b/collector.py
index 9b3119a..f5d0995 100644
--- a/collector.py
+++ b/collector.py
@@ -52,7 +52,7 @@
         except:
             file_json = []
         while len(file_json) > 288:
-            file_json.pop()
+            file_json.pop(0)
         file_json.append({
             'timestamp': int(now),
             'recipients': recipients,