Already implemented but currently not display these informations.
Below explanation from man command.
As a default, percentages for these individual categories are displayed.
Where two labels are shown below, those for more recent kernel versions are shown first.
us, user : time running un-niced user processes
sy, system : time running kernel processes
ni, nice : time running niced user processes
id, idle : time spent in the kernel idle handler
wa, IO-wait : time waiting for I/O completion
hi : time spent servicing hardware interrupts
si : time spent servicing software interrupts
st : time stolen from this vm by the hypervisor
Already implemented but currently not display these informations. Below explanation from man command.