condition	mean	min	max
4 h after light	19.29385	17.7795	20.8082
8 h after light	25.4758	23.2498	27.7018
12 h after light	25.9375	22.5551	29.3199
4 h after dark	41.27345	37.5985	44.9484
8 h after dark	34.71225	32.997	36.4275
12 h after dark	28.5926	24.8943	32.2909