condition	mean	min	max
4 h after light	19.130495500000002	16.959676	21.301315
8 h after light	16.6867065	16.673734	16.699679
12 h after light	18.721098499999997	17.165725	20.276472
4 h after dark	16.921547500000003	16.883419	16.959676
8 h after dark	16.770618499999998	16.641924	16.899313
12 h after dark	16.935793	16.935793	16.935793