Any board of supervisors having adopted a resolution of intention to establish an industrial farm or industrial road camp shall ascertain and enter in its minutes the following facts:
(a)
The number of persons sentenced to imprisonment in the county jail during the fiscal year last preceding the adoption of the resolution of intention.
(b)
The total number of days for which all persons were imprisoned in the county jail during that fiscal year.
(c)
The number of persons sentenced from the superior court of the county to any state prison upon conviction of a violation of Section 270 or Section 270a during that fiscal year.
(d)
The total number of days for which all persons so sentenced to state prisons were therein imprisoned during that fiscal year.