Every vaccine on the CDC schedule is new - since the 90s. If you want to compare total number of doses between an 80s schedule and today, I don't know off the top of my head, but I can explain why none of the vaccines that were on the schedule in the 80s are currently given.
In the 80s we had:
MMR - reformulated 2x during the 90s (added more mumps units, then reduced the mumps units but still kept it higher than the version from the 80s. i haven't found studies examining the effectiveness of the different versions).
DTP - pulled from the US market due to correlations with SIDS and causing too much encephalitis. replaced with the acellular DTaP.
oral polio (OPV)- pulled from the US market because it caused too much polio. replaced with the dead, injected polio (IPV). IPV is theorized to allow the acquisition and transmission of polio but to prevent polio from colonizing the gut and causing paralytic symptoms. it hasn't been tested in an area where polio is endemic. the government says that in the case of an outbreak, they will revaccinate children with the OPV. sounds like they aren't confident in it.
HiB - proved ineffective and wasn't added to the schedule, although some kids got it. the current HiB vaccine is new and more effective, at least in the short term.
