```ts
export function valueKeys(store: Record<string, string>): Record<string, number> {
  if (!store) return {};

  const result: Record<string, number> = {};
  for (const key in store) {
    if (result[store[key]]) {
      result[store[key]]++;
    } else {
      result[store[key]] = 1;
    }
  }

  return result;
}
```