As per given table , we can see that
Total population in 1990 = 153922 , increase in year 1991 = 5337
Total population in 1991 = Total population in 1990 - increase in year 1991 = 153922 − 5337 = 148585
Required Increase or decrease of population in 1992 over 1991 = Total population in 1992 − Total population in 1991
= 160998 − 148585 = + ( 12413 )
