condition	mean	min	max
4 h after light	16.06775	15.2996	16.8359
8 h after light	16.954	16.5981	17.3099
12 h after light	18.03575	16.2123	19.8592
4 h after dark	22.92785	21.4699	24.3858
8 h after dark	21.51745	21.2366	21.7983
12 h after dark	22.060000000000002	21.331	22.789