facebook insights paqe view using facebook api's

    209652442394600/insights?metrics/page_views?monthly

i want to get the number of views on monthly bases but my query is giving response like that

             {
        "data": [
               ], 
         "paging": {
           "previous": "http://ift.tt/1Igkmtq?   debug=all&pretty=0&suppress_http_code=1&since=1428469526&until=1428728726", 
"next": "http://ift.tt/1INc1kh" }}