The first column of the returned table is simply the number of the second-mode column.
The next three columns report the observed and expected clustering,
and the ratio of the former to the later.
The next three columns report the observed and expected path-length,
and the ratio of the former to the later.
The last column reports the ratio of the observed/expected clustering ratio
to the observed/expected path-length ratio, which is known as a small-world metric.
Expected clustering and paths is the mean of twomode_clustering and mean_distance
over 100 random simulations with the same row and column sums.