How to get enum count

I have a Enum 

typedef enum{

DEL_TIME_VALUE    = -1,
DEL_TIMESEC_VALUE = 100,
DEL_TIMEMIN_VALUE = 200,
DEL_TIMEHOUR_VALUE = 300,
DEL_DAY_VALUE      = 1000,
DEL_COUNT_VALUE    = 1000,
....
.....
.....
DEL_END             =90002
}WORKINGTIME;

How do i get the enum count.

I try below for loop!

for(int i=DEL_TIME_VALUE; i<=DEL_END; i++) {

}

I guess its not good one!

can any one tell me how to get enum count! which are declared in enum.

Thanks in advance!

c enums
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