Skip to main content
. 2019 Jun 17;6:82. doi: 10.1038/s41597-019-0089-3

Table 7.

Summary statistics for bilateral migration flows over five-year periods between 1990 and 2015 based on six flow estimation methods. All numbers except the Proportion Zero are in units of individuals per five years. N is the number of migration corridors modelled: 200 countries of origin × 200 countries of destination × 5 quinquennial intervals.

Stock Difference Drop Negative Stock Difference Reverse Negative Migration Rates Demographic Accounting Minimisation Open Demographic Accounting Minimisation Closed Demographic Accounting Pseudo Bayesian Closed
N      200,000       200,000         200,000       200,000       200,000      200,000
Minimum                  0                    0                     0                    0                   0                   0
Median                  0                    0                     0                    0                   0                   0
Mean               675             883            1,326                853                976          1,928
Maximum 2,763,183   2,763,183   3,492,367  2,865,526 2,899,536 3,918,816
Std. Dev.          15,322        17,770        22,710       17,470       16,926       25,492
Proportion Zero             0.82               0.79               0.76              0.72              0.7              0.53
Mean (non-zero)          3,788           4,112            5,513          3,025          3,206          4,096
Std. Dev. (non-zero)        36140         38167          46061           32801        30564        37039