condition	mean	min	max
4 h after light	15.4504165	15.106311	15.794522
8 h after light	16.381866000000002	15.628301	17.135431
12 h after light	15.2586595	14.231248	16.286071
4 h after dark	16.829815	16.43766	17.22197
8 h after dark	16.310647	16.286071	16.335223
12 h after dark	16.746673	16.746673	16.746673