According to the graph, which of the following is the best estimate of the total revenue from government funding in 1990

A． from 1970 to 1980, the number of stores increased by approximately 200
B． from 1970 to 2000, the number of stores approximately doubled
C． from 1980 to 2000, the average number of employees increased by approximately 50%
D． in 2000, there were about 75,000 employees
E． from 1970 to 2000, the number of employees increased each decade