condition	mean	min	max
4 h after light	20.3744055	18.520909	22.227902
8 h after light	21.7460465	20.631848	22.860245
12 h after light	20.847559500000003	18.375879	23.31924
4 h after dark	21.2314375	20.631848	21.831027
8 h after dark	18.0861575	17.392172	18.780143
12 h after dark	20.631848	20.631848	20.631848