condition	mean	min	max
4 h after light	21.482340999999998	18.486359	24.478323
8 h after light	18.9095675	17.675696	20.143439
12 h after light	20.0492755	19.105384	20.993167
4 h after dark	22.714738	20.550864	24.878612
8 h after dark	20.2897365	17.079374	23.500099
12 h after dark	13.291517	13.291517	13.291517