For each day's absence for reasons other than those permitted under § 1318 of this title, there shall be deducted 1/185 in the fiscal year beginning July 1, 1999; 1/187 in the fiscal year beginning July 1, 2000; 1/188 for the fiscal year beginning July 1, 2001; and each succeeding fiscal year, of the annual salary; 1/204 in the fiscal year beginning July 1, 1999; 1/206 in the fiscal year beginning July 1, 2000; 1/207 for the fiscal year beginning July 1, 2001; and each succeeding fiscal year, of the annual salary; 1/222 for an employee who is employed for 12 months, for each day of unexcused absence.