Work-search log: how detailed does it need to be? after 18 years as a line cook

I have been applying to about 18 jobs a week as a line cook, but I am unsure what my state wants in the log. Some days I only network by email or attend a job fair. Has anyone been audited?

I record the date, the company, the job title, how I applied and any contact name. It takes a minute each and it covered me when I was asked for proof.