[robertpaulsen]

"50 per cent either strongly or somewhat support decriminalization"

This could be:
Strongly Support: 2%
Somewhat Support: 48%

Big difference. Any more info on the survey? Like a further breakdown of results or exact wording of the questions?

[MrLeRoy]

This could be:
Strongly Support: 2%
Somewhat Support: 48%

In which case the bulk of the opposition would most likely be "somewhat".