average population (x 1000) live births deaths natural change crude birth rate (per 1000) crude death rate (per 1000) natural change (per 1000)
average population -lrb- x 1000 -rrb-
live births
deaths
natural change
crude birth rate -lrb- per 1000 -rrb-
crude death rate -lrb- per 1000 -rrb-
natural change -lrb- per 1000 -rrb-
number
number
number
number
number
number
number
number
number number number number number number number number
1970 31 683 356 327 22.0 11.5 10.5
how many years span the table entry ?
WRB JJ NNS VBP DT NN NN .
40
Keyword Keyword Keyword Column Keyword Keyword Keyword Keyword Column Keyword Keyword Keyword
select max ( c1_number ) - min ( c1_number ) from w
Keyword Keyword Column Keyword None None None None
['agg', 'agg_interval'] ['agg', 'agg_interval'] c1_number ['agg', 'agg_interval']