how to get stats

im new to liquid

i use this project https://github.com/crowdfundhq/site

in documentation is a drop -> "stats" - Statistics about your site and campaigns
how i use it to get all campaign.pledged etc.

i do it now with loops but i think there is a better solution

{% assign campaigns = current_site.campaigns.active | all %}
{% for campaign in campaigns %}
{% assign allpledg = campaign.pledged | plus: allpledg %}
{% endfor %}
{{ allpledg | to_currency: precision: 0 }}

maybe in shopify is a simular stats drop
or somebody can tell me how to use drops with an example

No file, test, or entry point is identified; start by determining whether Liquid provides a stats drop and how the external crowdfundhq/site campaign data is exposed. Done would require a documented, concrete example showing how to obtain the requested campaign statistics, or a clear explanation that the requested aggregation is not supported.