What Every Citizen Should Know About
Human Demographics

Numeric and Demographic Literacy
To visit our
gallery of graphs
and demographics, click here
| Each day, around the world, there are approximately
Notice that the number of births and deaths are not equal |
| At current rates we add
each day. |
| This means that we add approximately
each hour. |
|
Between 1975 and 1987, we grew from a world population of four billion to a world population of five billion. - twelve years - . |
Between 1987 and late 1999, we grew from a world population of five billion to a world population of six billion. - twelve years - . |
. |
The above data have greater meaning
if we appreciate how large a number a
BILLION really is.
Consider this riddle:
|
Answer:
38.5 years
|
Answer:
To complete one billion such questions
would require
38,461
years.
|
| That is
how many additional persons
. |
|
For other population and demographic statistics, visit
www.census.gov

Copyright 2003, Randolph Femmer.
