It was easier to obtain certification twenty years ago than is currently.

The majority of those currently in the profession were recruited more than twenty years ago when everyone in the profession was male.

The women who obtained certification in the last twenty years have chosen different specialities with in the profession than men have chosen.

Male and female members of the profession have been paid equal salaries during the past twenty years.

Although women currently hold five percent of the full-time positions in the profession, they told only two percent of the supervisory positions.