CZ-4B successfully launched SJ-5 05 on Dec 10 8:11 local time. This marked the 400th launch of the LM rocket.

The first hundred launches from CZ-1 in Apr 24, 1970 to CZ-3A in Jun 1, 2007 took 37 years to achieve. The second hundred launches from CZ-3B in Jul 5, 2007 to CZ-4B in Dec 7 2014 took more than 7 years. The third hundred launches from CZ-4C in Dec 11, 2014 to CZ-3B in Mar 10, 2019 took more than 4 years. The last hundred launches from CZ-3B in Mar 31 2019 to CZ-4B in Dec 10, 2021 took 33 months to achieve.