Hi eveybody, if i have a yield return in a lock statement does the lock get taken out on each yield (5 times in the example below) or only once for all the items in the list?

Thanks

    private List<string> _data = new List<string>(){"1","2","3","4","5"};
    private object _locker =new object();
    public IEnumerable<string> GetData()
    {
        lock (_locker)
        {
            foreach (string s in _data)
            {
                yield return s;
            }
        }
    }