With respect to quantity rather than quality.(adverb)
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Use "quantitatively" in a sentence
"Both men were convinced that a key to understanding metabolism lies in quantitatively correlating data on heat development, mechanical work and cellular chemical reactions."
"Einstein quantitatively predicted the curvature of starlight as it passes near the Sun."
"The one thing we can compare quantitatively is height, which hasn’t increased in two decades – the average height in the 2005-2006 season of NBA players was 6′-7. 18″, down from 6′-7. 36″ 20 years before."