Added main findings for structural policies. Moved environmentally-focused
infrastructure projects into structural (infrastructure) policies since
they are not in fact institutional policies.
- for weak evidence, + for substantiated evidence, ++ for strong evidence.
Currently separates between internal and external, and uses the bins:
0.0-2.9 for weak
3.0-5.9 for substantiated
6.0-... for strong evidence
Marty Oehme