If this activity happened in less than 30 seconds then it will be counted as:
Unique_Item_Requests = 1
Total_Item_Requests = 1
Unique_Item_Investigations = 1
Total_Item_Investigations = 1
If this activity happened in more than 30 seconds then it will be counted as:
Unique_Item_Requests = 1
Total_Item_Requests = 2
Unique_Item_Investigations = 1
Total_Item_Investigations = 2