Table 2. Properties of contact matrices for Scottish farms via sheep movements.
| Year | Mean of weighted contacts | Variance in-contacts | Variance out-contacts | Correlation in-contacts and out-contacts | Ratio of mean product in-contacts* out-contacts to mean contacts | Multiplicative effect of second order moments of network on the relative magnitude of R 0 |
| A Unweighted contacts between farms | ||||||
| Year 1 | 4.6 | 1,303 | 48.4 | +0.081 | 9.0 | 1.98 |
| Year 2 | 4.7 | 1,290 | 50.1 | +0.077 | 8.9 | 1.89 |
| Year 3 | 4.4 | 827 | 44.7 | +0.074 | 7.6 | 1.74 |
| Year 4 | 4.3 | 663 | 46.4 | +0.109 | 8.8 | 2.02 |
| B Contacts weighted by numbers of batches moved between farms | ||||||
| Year 1 | 7.4 | 29,894 | 148.3 | +0.054 | 22.7 | 3.07 |
| Year 2 | 7.8 | 31,204 | 172.2 | +0.035 | 18.3 | 2.35 |
| Year 3 | 6.9 | 7,751 | 120.8 | +0.059 | 15.2 | 2.20 |
| Year 4 | 6.7 | 5,831 | 124.3 | +0.072 | 15.8 | 2.36 |
| C Contacts weighted by numbers of sheep moved between farms | ||||||
| Year 1 | 140.5 | 2,600,728 | 96,719 | +0.200 | 855.3 | 6.09 |
| Year 2 | 138.3 | 2,203,887 | 82,796 | +0.183 | 704.0 | 5.09 |
| Year 3 | 137.2 | 483,045 | 85,900 | +0.360 | 670.9 | 4.89 |
| Year 4 | 143.9 | 555,775 | 168,741 | +0.303 | 789.5 | 5.48 |