Russell Group University
0 = Other University
1 = Russell Group University

Social Environment
1 = Cluster S1
2 = Cluster S2
3 = Cluster S3
4 = Cluster S4

Cultural Environment
1 = Cluster C1
2 = Cluster C2
3 = Cluster C3
4 = Cluster C4

Economic Environment
1 = Cluster E1
2 = Cluster E2
3 = Cluster E3
4 = Cluster E4

1 = Cluster P1
2 = Cluster P2
3 = Cluster P3
4 = Cluster P4