condition mean min max 4 h after light 0.0137398 0.0 0.0274796 8 h after light 0.0 0.0 0.0 12 h after light 0.02231055 0.0 0.0446211 4 h after dark 0.16296823333333335 0.0456117 0.328369 8 h after dark 0.0182889 0.0 0.0548667 12 h after dark 0.0332457 0.0 0.0711408