diff --git a/zpooliostat.py b/zpooliostat.py
index 619ccf9..24523b5 100644
--- a/zpooliostat.py
+++ b/zpooliostat.py
@@ -5,7 +5,7 @@ import os
 import time
 
 # Define your shell command
-command = ["zpool", "iostat", "-Tu", "-l", "-p", "-v", "-y", "1", "1"]
+command = ["zpool", "iostat", "-Tu", "-l", "-p", "-v", "-y", "15", "1"]
 
 headerRow = [
     "timestamp",