condition mean min max 0 h after light 1.79074 1.79041 1.79107 2 h after light 1.438515 1.15345 1.72358 4 h after light 1.33509 1.03992 1.63026 8 h after light 2.04387 1.98182 2.10592 12 h after light 3.28553 3.21227 3.35879 2 h after dark 3.12699 2.4344 3.81958 4 h after dark 3.139135 2.70514 3.57313 8 h after dark 3.903285 2.91411 4.89246 12 h after dark 3.149115 3.02073 3.2775