I don't measure my networking efforts. I try to stay in touch through social media and (pre covid) meet up with those individuals with business synergies.  Although I attend many networking events and even speak at some, I find it stressful so I set a goal to meet 3 people and exchange contact information. I then follow up with social media connection requests and, if it makes sense, a request for a follow up call (formerly, coffee meet up). I've found that networking efforts need to be two sided and that it can take years before it leads to work coming my way. I try to help the person I've connected with by either answering questions or making introductions.   Normally, my efforts are eventually reciprocated when the correct circumstances arise.