condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.00335646 0.0 0.00671292 12 h after light 0.0 0.0 0.0 4 h after dark 0.0026977033333333337 0.0 0.00809311 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0