The phrase "average contribution over the" is correct and usable in written English.
It can be used in contexts where you are discussing the mean or typical input or output of a variable across a specified period or group.
Example: "The average contribution over the last five years has significantly increased, indicating a positive trend in our fundraising efforts."
Alternatives: "mean contribution throughout the" or "typical contribution during the".
With about 28,000 donors, Mr. Giuliani's average contribution was over $500.
More specifically, the expected cost of subsidizing players, i.e. the additional contributions of the four seeds over their average contribution in the no-intervention case, was less than the total marginal increase in contributions from the remaining twenty individuals.
In January 1996, the average contribution was $790, the board said, compared with an average contribution of $685 recorded last month for candidates running next year.
We find that there has been a decrease in the average AR-contribution over the Mediterranean region and over the central United States.
One recent paper, again with DeConto as co-author, estimates that by 2070, if greenhouse gas emissions remain unchecked and the world warms by 3.5 degrees Celsius (6.3 degrees F), the Antarctic will be contributing some 5 millimeters (.2 inches) to sea level rise a year — that's more than 15 times its average contribution to sea level over the past 25 years.
The average contribution from one of the top 100 corporate donors in 2012, on the other hand, was over five million dollars.
During the debate, the average contribution was less than $25, the Sanders campaign notes. .
On average, participants in the plans of both small and large utilities saved a higher percentage of their incomes, too: their 9 percent and 8.2 percent average contribution rates, respectively, surpassed the 6.8 percent average rate for Vanguard plans over all.
House Majority PAC also raised money from 1,800 small donors with an average contribution of just over $20.
The homes purchased will be worth £77bn and the average contribution is £17,500, or 7% of the average purchase price.
