Traditionally, the WTS makes a big push to get publishers out (and auxiliary pioneering) during the months of March, April, and May; especially during the month the memorial falls in or the one that has 5 weekends.
They have been doing this for 40 years or more. Just as they come out of the winter slump.
Leolaia's comment on looking at the overall numbers is more realistic, seeing that in reality, the numbers have dropped.
Anyway, the WTS is not concerned about more people but are these people donating more money, or any money at all.
Blondie