How many kids still believe in Santa?

Santa Claus is coming to town — or so about 85% of young American children believe.
In interviews, 85% of 4-year-olds said that they believed in Santa, 65% of 6-year-olds said that they believed, and 25% of 8-year-olds said that they believed. Those numbers were published in a small study in the American Journal of Orthopsychiatry in 1978.
But researchers say those percentages of young children who believe in jolly old Saint Nick seem to have remained steady over the years.
Resea