Age survey

# Entry
age = ''
count = 0
total = 0
# Process
while age != -1:
    age = int(input("Type the age of the citizen or type -1 to close the program:"))
    if age != -1:
        total += 1
        sex = int(input("Type 1 if the citizen is female\nType 2 if the citizen is male:"))
        if sex == 1 and age <= 35 and age >= 18:
            count += 1
# Output
if count == 0:
    print("The percentage of women between 18 and 35 in the city is 0%")
else:
    percentage = count / total * 100
    print("The percentage of women between 18 and 35 in the city is", percentage, "%")