By John Zappe

Getting the cold shoulder from your LinkedIn prospects? Maybe it's just bad luck that you're sourcing for high demand candidates who may be in that rarefied category called "super passive."

Most of the workers of the world who visit LinkedIn are open to a new job and, in the U.S. 43% of them are open to talking to recruiters. Even the ranks of the super passives are in decline, dropping 25% globally (from 20% to 15%) since a survey in 2012.

In the largest survey the business networking site has undertaken, more than 18,000 LinkedIn visitors shared their attitudes about job prospecting and career satisfaction. Several hundred from each of 26 countries participated, in many cases expressing very similar feelings about how actively they are looking for a new job and what it is that would prompt them to make a switch. (The full report is available here.)

While every person is different, the LinkedIn survey offers powerful insights into job change motivation. In the U.S., about 10% of the 935 respondents are actively looking for a job. At the other extreme, 21% fall into the super passive category, saying they are completely satisfied where they are.