condition mean min max 4 h after light 5404.819034 5068.462826 5741.175242 8 h after light 5646.009101 5545.155134 5746.863068 12 h after light 4895.3225475 4695.413038 5095.232057 4 h after dark 4195.9681005 3993.941143 4397.995058 8 h after dark 4458.8129505 4409.656937 4507.968964 12 h after dark 5594.224493 5594.224493 5594.224493