condition	mean	min	max
4 h after light	21.093605500000002	19.536535	22.650676
8 h after light	17.8076735	17.39637	18.218977
12 h after light	16.8998	16.101232	17.698368
4 h after dark	21.9399235	20.768156	23.111691
8 h after dark	19.836736000000002	18.708123	20.965349
12 h after dark	18.870536	18.870536	18.870536