condition	mean	min	max
4 h after light	39.1	39.1	39.1
8 h after light	39.3	20.1	58.5
12 h after light	46.05	37.8	54.3
4 h after dark	41.15	23.0	59.3
8 h after dark	50.8	49.1	52.5
12 h after dark	37.45	31.2	43.7