We can't give "average" salary data for our clients because we don't collect it.
Salary is anyway only one part of many people's remuneration, with bonuses, LTIPs, pensions and equity to take into account also.
Salary is no guide to whether you might benefit from working with us. Status and pay are not related - and neither, necessarily, are your past and future salaries.
If you spend enough time on this site you'll get the message that we work with people at all levels, ages and stages of their careers, and all salaries.