Is it possible to collect upstream statistics for memc_pass?

I've created the following location for upstream, but nginx doesn't collect any statistics:

log_format main '$host $remote_addr - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" upstream $upstream_response_time TIME: $request_time';

 location /memc {
 internal;
 access_log main;
 set $memc_key $arg_key;
 set $memc_cmd $arg_cmd;
 set $memc_value $arg_val;
 set $memc_flags $arg_flags;
 set $memc_exptime $arg_exptime;
 memc_cmds_allowed get set;
 memc_pass memc;
 }