Are you trying to find reliable statistics on the web?
Use a site limiter to ensure a more trustworthy result. You can limit to a type of domain, or even to a specific website. For example, if I wanted to search population statistics I could do either:
population statistics site:.gov
or
population statistics site:census.gov
You can use the site limiter for any domain or website: .edu and .org are other possible options. Do be wary of anything from .com or .net, though. These last two are often consumer-driven and full of biases.