Update index.md

index.md

@@ -9,7 +9,7 @@ title: Project Open Data
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 Data is a valuable national resource and a strategic asset to the U.S. Government, its partners, and the public.  Managing this data as an asset and making it available, discoverable, and usable – [in a word, open](principles/) – not only strengthens our democracy and promotes efficiency and effectiveness in government, but also has the potential to create economic opportunity and improve citizens’ quality of life. 
 
-For example, when the U.S. Government released weather and GPS data to the public, it fueled an industry that today is valued at over $90 billion. Now, weather and mapping tools are ubiquitous and help everyday Americans [navigate their lives](business-case/). 
+For example, when the U.S. Government released weather and GPS data to the public, it fueled an industry that today is valued at tens of billions of dollars per year. Now, weather and mapping tools are ubiquitous and help everyday Americans [navigate their lives](business-case/). 
 
 The ultimate value of data can often not be predicted. That’s why the U.S. Government released a [policy](policy-memo/) that instructs agencies to manage their data, and information more generally, as an asset from the start and, wherever possible, release it to the public in a way that makes it open, discoverable, and usable.