Only 7 # 1 Singles in 2002?

Now here is another wacky year for the Billboard Hot 100. In 2002, there were only 7 actual # 1 singles for the year. Did it have anything to do with the huge decline in the retail singles market? Did it seem like the Hot 100 essentially became an airplay chart from late 2001 to early 2005?

Hey @Jarrett_Nolan or @jtmichaelson do you perhaps know why this could be?

This era is @Jarrett_Nolan area of expertise. I’ll IM J with the question.

Thanks for your input, it is an interesting era for the Hot 100.