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Discover LudwigThe phrase "which contributed about" is correct and usable in written English.
It can be used when discussing the impact or influence of a particular factor or element in a specific context, often in research or analytical writing. Example: "The new policy changes were implemented in 2020, which contributed about 15% to the overall increase in productivity."
Exact(4)
Like most military contractors in recent years, Cassidian, which contributed about half of EADS's €12 billion, or $15 billion, in defense revenue last year, has seen its growth stalled by sharp budget cutbacks in Europe and the United States.
Another major contributor was mother's education which contributed about 13 and 11 % for primary and above secondary attainments, respectively (Table 3).
Another factor adding to 2Q earnings and revenue growth was a big increase in inventories, which contributed about half of the 4.0percentt growth rate in 2Q GDP.
Finally, the Florida tubers contained much higher amounts of zeaxanthin, which contributed about 40% of the total, whereas it was less than 1% in samples from all other locations.
Similar(55)
One in every 11 people worldwide is employed in the sector, which contributes about 9.5% of global GDP.
About half of the economically active population is employed in agriculture, which contributes about one-fifth of Albania's GDP.
Efficient design can help reduce the cement industry's global impact, which contributes about five percent of the globe's total carbon emissions.
Shortly after News Corporation bought MySpace in 2005, it established a search advertising deal with Google, which contributes about $300 million to the company's annual revenue.
Macy's also received help from the comeback in luxury spending via its Bloomingdale's chain, which contributes about 10 percent of sales.
On Thursday, Nokia said the unit, which contributes about 40 percent of total sales, would report an operating profit for the quarter, its third consecutive quarterly profit.
Most are among the roughly two-thirds of the population who live in the countryside and depend on agriculture, which contributes about one-fifth of GDP.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com