SYMPTOM:
When running reports to test in Strategy Integrity Manager 9.x, space is used as thousand separator, not comma, as shown below:

CAUSE:
The thousand separator for reports running in Strategy Integrity Manager and Web is controlled by the locale setting under Web Preference->User Preferences->General->Language->Show advanced options->Number and Date Format, as shown below:

If Swedish(Sweden) is selected for 'Number and Date Format', then the thousand separator is space.
ACTION:
This is working as designed. If comma is needed to be the thousand separator, select Default or 'English(US)' for 'Number and Date Format'.