Use "infrequency" in a sentence

1. The families of the men who had been in the ill-starred Klan foray did how little significance there was to the few calls made upon them, and he knew why the call first, but called with obvious infrequency thereafter

2. to terminate trading in its shares on the Philadelphia Stock Exchange and the New York Curb Exchange, intimating that the infrequency of transactions might be responsible for their unduly low price

3. Arguably, real estate is more prone to bubbles than other asset classes, due to the difficulty of pinning down fair value and the near impossibility of selling the asset short, as well as the cost and infrequency of transactions