nvidia-smi on ESXi reports 0% vGPU-Util

Hi, I’m using nvidia-smi on the ESXi 6.5 with Nvidia Grid K1.
What needs to be done, that I can see the utilization of the VM’s? This is the output of the command nvidia-smi vgpu:
±----------------------------------------------------------------------------+
| NVIDIA-SMI 367.92 Driver Version: 367.92 |
|-------------------------------±-------------------------------±-----------+
| GPU Name | Bus-Id | GPU-Util |
| vGPU ID Name | VM ID VM Name | vGPU-Util |
|===============================+================================+============|
| 0 GRID K1 | 0000:07:00.0 | 68% |
| 69923 GRID K120Q | 69925 Pool-PC-09 | 0% |
| 69922 GRID K120Q | 69924 Pool-PC-14 | 0% |
| 72817 GRID K120Q | 72831 Pool-PC-10 | 0% |
| 301470 GRID K120Q | 301472 Pool-PC-16 | 0% |
| 75693 GRID K120Q | 75706 Pool-PC-19 | 0% |

Thanks

Grid K1/K2 and vGPU (or per process) statistics - NEVER ! NEVER ! NEVER ! Nvidia decided !