condition	mean	min	max
4 h after light	19.0500855	16.932535	21.167636
8 h after light	21.336676	20.694437	21.978915
12 h after light	21.695853	20.694437	22.697269
4 h after dark	25.876255	20.631848	31.120662
8 h after dark	20.410932000000003	20.102848	20.719016
12 h after dark	18.380048	18.380048	18.380048