The mongostat command of version 2.6.3 displaying locked percentage field, Whereas the mongostat 3.6.17 version command not displaying locked percentage. Is there any alternate way to fetch locked percentage field?

[root@sessionmgr01 ~]# mongo --version
MongoDB shell version: 2.6.3
[root@CA-PRI-sessionmgr01 ~]# mongostat
connected to: 127.0.0.1
insert query update delete getmore command flushes mapped vsize res faults locked db idx miss % qr|qw ar|aw netIn netOut conn set repl time

[root@sessionmgr01 ~]# mongo --version
MongoDB shell version v3.6.17
git version: 3d6953c361213c5bfab23e51ab274ce592edafe6
OpenSSL version: OpenSSL 1.1.1c FIPS 28 May 2019
allocator: tcmalloc
modules: none
build environment:
distmod: rhel80
distarch: x86_64
target_arch: x86_64

[root@sessionmgr01 ~]# /usr/bin/mongostat
insert query update delete getmore command flushes mapped vsize res faults qrw arw net_in net_out conn set repl time