Crude death rate = D/P * 1000. In this formula, what does P means here ?

Mid-year population of that area Estimated mid-year population of that area Mean mid-year population of that area Average mid-year population of that area

Estimated mid-year population of that area

CDR is expressed in terms of number of deaths in a particular year per thousand of population in a particular region. It is calculated as CDR = D/P *1000, where CDR=Crude Death Rate; D= Number of deaths; P=Estimated mid-year population of that year.