condition	mean	min	max
4 h after light	8.203871	7.833881	8.573861
8 h after light	8.867854000000001	8.573861	9.161847
12 h after light	8.722043	8.151043	9.293043
4 h after dark	9.627686	9.114107	10.141265
8 h after dark	8.69729	8.573861	8.820719
12 h after dark	8.446746	8.446746	8.446746