C rand() execution times different from pseudo-random number's number

I want to generate 1000 random numbers in the range 1-10 and print how many times each number was produced, but i had met a problem. Logically speaking, using rand() 1000 times, you'll get 1000 random numbers. But i added up each number's generate times, it was always less or large than 1000, not equal to 1000. Though the program can run correctly, i still wonder why this thing could happen.

My programming environment is the latest version of Microsoft Visual Studio 2017.

Here is my source code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main(void)
{
    unsigned int temp_num;
    int count,general_count;
    int num1 = 0;
    int num2 = 0;
    int num3 = 0;
    int num4 = 0;
    int num5 = 0;
    int num6 = 0;
    int num7 = 0;
    int num8 = 0;
    int num9 = 0;
    int num10 = 0;
    int total_time = 0;  //for test
    int true_time = 0;  //for test

    for (general_count = 0; general_count < 10; general_count++) {
        srand((unsigned int)(time(NULL) * general_count * 10));
        for (count = 0; count < 1000; count++) {
            temp_num = (rand() % 11 + 1);
            total_time++;  //for test
            switch (temp_num) {
            case 1: { num1++; break; }
            case 2: { num2++; break; }
            case 3: { num3++; break; }
            case 4: { num4++; break; }
            case 5: { num5++; break; }
            case 6: { num6++; break; }
            case 7: { num7++; break; }
            case 8: { num8++; break; }
            case 9: { num9++; break; }
            case 10: { num10++; break; }
            default: {break; }
            }
            true_time = num1 + num2 + num3 + num4 + num5 + num6 + num7 + num8 + num9 + num10;  //for test
        }
        printf("Every number's shown status in 1000 random numbers with seed time(NULL) * %u:\n", (unsigned int)(general_count * 10));
        printf("1 -------------------- %d time(s)\n", num1);
        printf("2 -------------------- %d time(s)\n", num2);
        printf("3 -------------------- %d time(s)\n", num3);
        printf("4 -------------------- %d time(s)\n", num4);
        printf("5 -------------------- %d time(s)\n", num5);
        printf("6 -------------------- %d time(s)\n", num6);
        printf("7 -------------------- %d time(s)\n", num7);
        printf("8 -------------------- %d time(s)\n", num8);
        printf("9 -------------------- %d time(s)\n", num9);
        printf("10 -------------------- %d time(s)\n", num10);
        num1 = 0;
        num2 = 0;
        num3 = 0;
        num4 = 0;
        num5 = 0;
        num6 = 0;
        num7 = 0;
        num8 = 0;
        num9 = 0;
        num10 = 0;
        printf("*****%d*****\n",total_time);  //for test
        printf("*****%d*****\n", true_time);  //for test
        total_time = 0;  //clear test variable
        true_time = 0;  //clear test variable
        printf("\n");
    }

    printf("Done.\n");
    return 0;
}

Thank you for your help. Forgive my poor English.