I've had the same "problem" if you want to have this kind of information you will have to go to the menu administration on your vsphere and inside vcenter Server settings, after that you will need to go to the Statics option and change the static levels to 2. This change usually increases a lot the use of the database so be careful to change the least you can. In my case I just adjusted the 5minutes interval duration to Statistics Level 2 since I just need this kind the metrics for a day.
regards,
Wiliam