GMAT Critical Reasoning (CR) | Re: From 1994 to 2001, violent crime in New York City steadily decreased

NY crime rate proportion :
in 2001 : 851 / 100,000 (more than 50% decrease)
in 1994 : 1861 / 100,000 (which represents100%)

US crime rate proportion :
in 2001 : 500 / 100,000 (about 30% decrease)
in 1994 : 715 / 100,000 (which represents100%)

Therefore, comparing NY to US :
in 1994 : 1881 / 100,000 > 715 / 100,000 ----------> NY > US
in 2001 : 851 / 100,000 > 500 / 100,000 ------------> NY > US

Option D is correct.
All other options cannot be inferred from the passage.
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