condition	mean	min	max
0 h after light	19.2471	18.451	20.0432
4 h after light	12.08165	11.9281	12.2352
8 h after light	23.14295	19.6676	26.6183
4 h after dark	26.5595	23.7688	29.3502
8 h after dark	19.4194	19.0098	19.829
12 h after dark	16.7515	13.8473	19.6557