condition mean min max 4 h after light 6524.8 6524.8 6524.8 8 h after light 6091.6 5439.0 6744.2 12 h after light 4832.05 3912.4 5751.7 4 h after dark 3973.8999999999996 3781.6 4166.2 8 h after dark 4031.45 3645.9 4417.0 12 h after dark 5453.45 4355.7 6551.2