Populate the cells of a table from the property values of an object

What is the best way in displaying some data in a table which change dynamically, so does the row numbers.
For example I have this Object result:
obj={10: [“1”, “3”, “0”, “0”]
11: [“1”, “7”, “0”, “0”]
12: [“1”, “12”, “0”, “0”]}

The keys of this object can change this means now i have 10,11,12 but i could have keys such as 7,8,9,10,11 this means that the rows are not fixed and also the elements of each array can change.
From what I read so far I believe I have to use the aslagle:reactive-table, but not returning a Collection but an Object. Can you provide a simple example on this?