For Google your keywords data usually takes two days to be imported, while for Bing and Yahoo! it may take up to a week. For Yandex the delay might be up to 4 days.
Because Search engines provide your keywords data a few days late, it may take a bit of time for reports to be populated with data.
Over time you will be able to access months and even years of Search Keywords performance data and gain valuable insights into your SEO (Search Engine Optimisation) progress.