#!/bin/bash

declare -a statuses
HOST="https://google.com"

for i in {1..100};
do 
  result=$(curl -I $HOST --silent 2>&1 | grep "HTTP/" | cut -d " " -f 2)
  
  statuses["$result"]=$((statuses["$result"]+1))
done;

for key in "${!statuses[@]}"; do echo "$key => ${statuses[$key]}"; done