The statistics command with no parameters fetches a list of available statistics:
$ vmware-toolbox-cmd stat raw session host resources vscsi scsi0:0 vnet 00:0c:29:1e:23:f3
session – the current session. This changes infrequently. Session changes can cause discontinuities.
host – information about the current hypervisor and hardware the virtual machine is running on.
resources – the CPU and memory usage of this virtual machine.
vscsi <name> – storage statistics for a specific virtual disk, where <name> is the internal name in the virtual machine’s configuration file. The library does not aggregate storage statistics across disks.
vnet <Ethernet Address> – network statistics for a specific virtual NIC, where <Ethernet Address> is the MAC address currently programmed into the virtual NIC. The library does not aggregate network statistics across NICs.
For information about a specific statistic, enter its name.