erratic fluctuation in a sentence

1. The " erratic fluctuations " began after a Monday maintenance session in which mechanics replaced a trim tab on the plane's elevator, investigators said.
2. Stung in previous years by erratic fluctuations in their currency, most Russians hold their savings in dollars and exchange them into rubles only as they need to purchase goods.
3. Doctor Light works in S . T . A . R . Labs and has an interior monologue about the erratic fluctuations in her powers that lead to her retirement from superheroing.
4. Earnings rated 4 may be characterized by erratic fluctuations in net income, the development of a severe downward trend in income, or a substantial drop in earnings from the previous period, and a drop in projected earnings is anticipated.
5. With that perspective in mind, the stock owner should not be too concerned with erratic fluctuations in stock prices, since in the short term the stock market behaves like a voting machine, but in the long term it acts like a weighing machine ( i . e . its true value will be reflected in its stock price in the long run ).
6. It's difficult to find erratic fluctuation in a sentence.