Table 1 (information gathered from NASA public sources)
This means that of the around 500 stars within 10 parsecs, only 9 stars (not including Sol) have been proven to have planets existing within the range of their stars where nitrogen is able to freeze. This does not even include the concept of the greenhouse effect, which could easily serve to cause many of these planets to become much hotter.
It is understood that planets are more likely to be detected when they are much closer to their star’s orbit (though they are also easier to detect in less luminous stars), so this statistic should not be taken as infallible evidence that planets able to cause N2 fragment ejection are highly unlikely to exist, but rather that there is simply very little current evidence to suggest that these planets are present within the galaxy at the degree to which our solar system has them¹⁶. Therefore, the assertion that our solar system is typical in its ability to eject nitrogen icebergs is not fully represented by our current data on exo-planetary systems.