My understanding from this lecture : definition of population "A population is a summation of all the organisms of the same group or species, who live in the same geographical area, and have the capability of interbreeding"

• According to worldometers.info at 10.30pm gmt+6 in 8/13/2021
• Current World population   : 7,885,968,242
  TODAY Births today : 360,469

  Deaths today : 151,334

  Population Growth today : 209,135

  THIS YEAR Births this year: 86,331,096

  Deaths this year: 36,243,863

  Population Growth this year : 50,087,830
• Population Growth Rate 
• Source of Population Statistics
• Crude birth rate , crude death rate
• Different source of population statistics like Census, Survey, vital registration