Insights before 2010-04-02 are missing?

Question

I'd like to get Insights data before 2010-04-02, but it seems to be impossible to retrieve via the Graph API or FQL query. If you make a Graph API request spanning over 2010-04-02 you will get results starting at 2010-04-02 and going forward with the rest simply missing. Can any one explain this or have a way to get around this limitation?

Here is an example of the problem: http://developers.facebook.com/tools/explorer/?method=GET&path=2439131959%2Finsights%2Fapplication_active_users%3Fsince%3D2010-03-28%26until%3D2010-04-10%26date_format%3DY-m-d

There should be results from 2010-03-28 to 2010-04-10, but you only get 2010-04-02 and onwards.

{
  "data": [
    {
      "id": "2439131959/insights/application_active_users/day", 
      "name": "application_active_users", 
      "period": "day", 
      "values": [
        {
          "value": 172118, 
          "end_time": "2010-04-02"
        }, 
        {
          "value": 177263, 
          "end_time": "2010-04-03"
        }, 
        {
          "value": 176568, 
          "end_time": "2010-04-04"
        }, 
        {
          "value": 190725, 
          "end_time": "2010-04-05"
        }, 

...

Answer 1

Maybe your insights were a "victim" of this: https://developers.facebook.com/docs/reference/fql/insights/

We are deprecating some old insights. These metrics are marked as deprecated throughout this document. After 12/21/2011, data for these metrics won't be available prior to 07/19/2011 -- please download this data before this 12/21/2011. These insights will be completely removed from API after 02/15/2012.