condition mean min max 4 h after light 184.2947675 175.55051 193.039025 8 h after light 222.571836 217.050436 228.093236 12 h after light 192.99208950000002 175.232057 210.752122 4 h after dark 218.565619 217.927755 219.203483 8 h after dark 195.4134095 191.108715 199.718104 12 h after dark 160.579465 160.579465 160.579465