I doubt that the percentage of lying is much less in personal contact if you disregard aspects like height, weight, lookings you just cannot lie about to a person who sits next to you. But the other lies (marital status, wishes, feelings,..) come about as often in personal contact. In some of the cases these people also lie to themselves, they'd love to believe, e.g., that there are more important things in their lives than their job.

Wolfgang