Over the last 20 years there has regularly been periods of 4 or 5 years in a row when no employee has been off sick or arrived at work late.
ໃນໄລຍະ 20 ປີທີ່ຜ່ານມາມີໄລຍະເວລາ 4 ຫລື 5 ປີຕິດຕໍ່ກັນເປັນປົກກະຕິເມື່ອບໍ່ມີພະນັກງານຄົນໃດທີ່ເຈັບປ່ວຍຫຼືມາເຮັດວຽກຊ້າ.