How to Use "unofficial" with Example Sentences

1. * The unofficial tally of global facebook users is approaching 700 million .
2. We 've never done the number-crunching ourselves , but unofficial studies suggest the assertion has merit .
3. Such sights are common in the unofficial kurdish capital .
4. There has long been an unofficial truce between networking vendors and server vendors .
5. Unofficial reports spoke of 15 deaths .