You have very good PDF on" FAS " with numbers you can see in general out but a true report !
18 JL-2 for 4 Jin maybe a class of up to 6 ?
Quite sure DF-5C is not in service yet DF-5B appearing only end 2015..
In fact China have much less ICBM than USA, 400, Russia 310 same for SLBMs and not Strategic
Bombers but much MRBM, SRBMs
IMO the reason that china has so many M/SRBM is that due to a lack of a credible long-range attack aviation. As for ICBM, i think that china could have more, but they choose not to, perhabs due to political reasons, to not antagonize western public opinions, unlike russia which only exports energy and doesnt care what the west thinks about them (central/eastern europe depend on russia for natural gas).