This is what I get when I have my Esplora flat on the bench. As I rotate it the numbers change a bit but return to this when I stop moving it. This is what I would expect.
x: 16 y: 27 z: 146
x: 16 y: 26 z: 145
x: 16 y: 26 z: 146
x: 16 y: 26 z: 144
x: 16 y: 27 z: 146
x: 17 y: 27 z: 144
x: 16 y: 26 z: 145
x: 16 y: 27 z: 145
x: 16 y: 27 z: 145