(1) If any property, real or personal, which is otherwise exempt from the levy and collection of property tax pursuant to the provisions of section 39-3-106, is used for any purpose other than the purposes specified in sections 39-3-106 to 39-3-113.5, such property shall be exempt from the levy and collection of property tax if:

(a) The property is used for such purposes for less than two hundred eight hours, adjusted for partial usage if necessary on the basis of the relationship that the amount of time and space used for such other purpose bears to the total available time and space, during the calendar year; or

(b) The use of the property for such purposes results in either:

(I) Less than ten thousand dollars of gross income to the owner of such property which is derived from any unrelated trade or business, as determined pursuant to the provisions of sections 511 to 513 of the federal "Internal Revenue Code of 1986", as amended; or

(II) Less than ten thousand dollars of gross rental income to the owner of such property.

(1.5) Notwithstanding the provisions of subsection (1) of this section, for property tax years commencing on or after January 1, 1994, if any property, real or personal, which is otherwise exempt from the levy and collection of property tax pursuant to the provisions of section 39-3-106, is used for any purpose other than the purposes specified in sections 39-3-106 to 39-3-113.5, such property shall be exempt from the levy and collection of property tax if:

(a) The property is used for such purposes for less than two hundred eight hours, adjusted for partial usage if necessary on the basis of the relationship that the amount of time and space used for such other purpose bears to the total available time and space, during the calendar year; or

(b) The use of the property for such purposes results in:

(I) Less than ten thousand dollars of gross income to the owner of such property which is derived from any unrelated trade or business, as determined pursuant to the provisions of sections 511 to 513 of the federal "Internal Revenue Code of 1986", as amended; and

(II) Less than ten thousand dollars of gross rental income to the owner of such property.

(2) Except as otherwise provided in section 39-3-108 (3) and subsection (3) of this section, if any property, real or personal, that is otherwise exempt from the levy and collection of property tax pursuant to the provisions of sections 39-3-107 to 39-3-113.5 is used on an occasional, noncontinuous basis for any purpose other than the purposes specified in sections 39-3-106 to 39-3-113.5, such property shall be exempt from the levy and collection of property tax if:

(a) The property is used for such purposes for less than two hundred eight hours, adjusted for partial usage if necessary on the basis of the relationship that the amount of time and space used for such other purpose bears to the total available time and space, during the calendar year; or

(b) The use of the property for such purposes results in less than twenty-five thousand dollars of gross rental income to the owner of such property.

(3) The requirement that property be used on an occasional basis in order to qualify for the exemption set forth in subsection (2) of this section shall not apply to property, real or personal, that is otherwise exempt from the levy and collection of property tax pursuant to the provisions of section 39-3-111 that is used for any purpose other than the purposes specified in sections 39-3-106 to 39-3-113.5.