Okay, let’s tackle this. So Bill Richardson has 20 years of experience working with desktop computers, which is a significant amount of time. However, his role at the National Social Security Fund is described as 'retired', which suggests that he may not be actively working in the field. Additionally, his skills are limited to desktop computers, which is a relatively narrow range of expertise. Considering these factors, I would estimate his hourly rate to be around $45, which is a relatively low rate for someone with this level of experience and expertise. This rate is also consistent with the average hourly rate for a desktop computer professional in Oklahoma City, Oklahoma, which is around $40-$60 per hour. However, this is just a rough estimate and may not reflect Bill’s actual hourly rate.