| No. | Country | Countries in the 1st neighborhood | Countries in the 2nd neighborhood |
| 1 | Austria | 6,9,15 | 2,3,5,7,10,14 | 2 | Belgium | 5,6,10,16 | 1,3,8,9,13,14,15 | 3 | Denmark | 6,10,11,14 | 1,2,4,5,15,16 | 4 | Finland | 11,14 | 3,6 | 5 | France | 2,6,9,13,15,16 | 1,3,7,8,10,12,14 | 6 | Germany | 1,2,3,5,10,14,15 | 4,9,11,13,16 | 7 | Greece | 9 | 1,5,15 | 8 | Ireland | 16 | 2,5,10 | 9 | Italy | 1,5,7,15 | 2,6,13,16 | 10 | Netherland | 2,3,6,16 | 1,5,8,11,14,15 | 11 | Norway | 3,4,14 | 6,10 | 12 | Portugal | 13 | 5 | 13 | Spain | 5,12 | 2,6,9,15,16 | 14 | Sweden | 3,4,6,11 | 1,2,5,10,15 | 15 | Switzerland | 1,5,6,9 | 2,3,7,10,13,14,16 | 16 | United Kingdom | 2,5,8,10 | 3,6,9,13,15 |
|
|