condition mean min max 4 h after light 143.1373925 110.895127 175.379658 8 h after light 170.043007 159.30898 180.777034 12 h after light 179.7676525 172.078211 187.457094 4 h after dark 150.88827750000002 106.114059 195.662496 8 h after dark 156.9392965 142.031152 171.847441 12 h after dark 79.477911 79.477911 79.477911