I conducted an experiment for my school science fair on "How many licks does it take to get to the Tootsie Roll center of a Tootsie Roll Pop?". I had 22 volunteers in an age range of 12-13 yrs. lick Tootsie Roll Pops and see how many licks it took ; Here are my results:

Flavor # Licks
Orange 237
Chocolate 241
Cherry 270
Chocolate 286
Cherry 290
Grape 327
Grape 350
Cherry 350
Raspberry 353
Cherry 370
Grape 390
Cherry 416
Cherry 420
Chocolate 430
Cherry 470
Grape 480
Cherry 543
Chocolate 634
Raspberry 770
Grape 808
Grape 1550
Orange 2000
AVERAGE = 544.7727

The average amount of licks for 12 year olds was 558 (rounded) and the average licks for 13 year olds was 513. The average amount of licks for boys was 649 (rounded) and the average licks for girls was 420 (rounded).