condition	mean	min	max
4 h after light	21.042450000000002	20.6198	21.4651
8 h after light	18.3734	18.2528	18.494
12 h after light	18.8067	17.7188	19.8946
4 h after dark	22.367350000000002	21.551	23.1837
8 h after dark	23.09815	22.2325	23.9638
12 h after dark	26.8452	25.6282	28.0622