condition	mean	min	max
4 h after light	17.1506	17.0839	17.2173
8 h after light	22.8445	20.8847	24.8043
12 h after light	24.01125	21.8493	26.1732
4 h after dark	26.3704	23.0432	29.6976
8 h after dark	26.6862	23.9029	29.4695
12 h after dark	22.56595	20.6699	24.462