condition	mean	min	max
4 h after light	17.6342	17.5739	17.6945
8 h after light	16.5003	16.0046	16.996
12 h after light	21.73975	20.3112	23.1683
4 h after dark	26.8003	25.8322	27.7684
8 h after dark	28.3345	28.2043	28.4647
12 h after dark	24.75665	24.3645	25.1488