condition	mean	min	max
0 h after light	19.151	18.8592	19.4428
4 h after light	19.97715	18.2567	21.6976
8 h after light	20.3988	17.5926	23.205
4 h after dark	20.954050000000002	20.388	21.5201
8 h after dark	23.194899999999997	22.6818	23.708
12 h after dark	20.11305	19.7249	20.5012