$ who -r
.       run-level 3  Oct 26 15:04      3      0  S
$

run level 3

Identifies the current run level. 

Oct 26 15:04

Identifies the date of last run level change. 

3

Is the current run level. 

0

Identifies the number of times at this run level since the last reboot. 

S

Identifies the previous run level.