condition	mean	min	max
4 h after light	9.23891	9.05862	9.4192
8 h after light	6.17335	5.85105	6.49565
12 h after light	4.6229	4.44405	4.80175
4 h after dark	4.4485166666666665	4.14446	5.03156
8 h after dark	8.27403	7.97649	8.49694
12 h after dark	9.219913333333333	8.96614	9.44657