During 2017-18, 9.3 shifts/days were lost per person to sickness for wholetime firefighters and 14.3 shifts/days for fire control staff.
Yn ystod 2017-18, collwyd 9.3 sifft/diwrnod y pen oherwydd salwch ar gyfer diffoddwyr tân amser cyflawn ac 14.3 sifft/diwrnod ar gyfer staff rheoli tân.