Complex sentence: The numbers at the bottom explain when you graduated from the police academy; ror example, 9605 means he/she graduated from the police academy in 1996 and was the 5th to graduate from the academy.
Split into simpler sentences: The numbers at the bottom explain when you graduated from the police academy. So for example 9605 means he/she graduated from the police academy in 1996 and was the 5th to graduate from the academy.