{"vs6": {"base": "2026-02", "latest": "2026-08", "improved": [{"snum": "4840", "from": 2.6, "to": 2.0, "delta": -0.6}, {"snum": "4863", "from": 2.3, "to": 1.8, "delta": -0.5}, {"snum": "4957", "from": 2.4, "to": 1.9, "delta": -0.5}, {"snum": "4895", "from": 1.4, "to": 1.0, "delta": -0.4}, {"snum": "6003", "from": 2.5, "to": 2.1, "delta": -0.4}, {"snum": "4842", "from": 3.0, "to": 2.7, "delta": -0.3}, {"snum": "4855", "from": 2.6, "to": 2.3, "delta": -0.3}, {"snum": "4892", "from": 2.1, "to": 1.8, "delta": -0.3}, {"snum": "4899", "from": 1.4, "to": 1.1, "delta": -0.3}, {"snum": "4931", "from": 3.1, "to": 2.8, "delta": -0.3}], "worsened": [{"snum": "4852", "from": 1.9, "to": 3.8, "delta": 1.9}, {"snum": "4825", "from": 2.9, "to": 4.7, "delta": 1.8}, {"snum": "4914", "from": 2.4, "to": 3.8, "delta": 1.4}, {"snum": "4981", "from": 3.0, "to": 4.3, "delta": 1.3}, {"snum": "4963", "from": 2.9, "to": 4.2, "delta": 1.3}, {"snum": "4959", "from": 1.7, "to": 3.0, "delta": 1.3}, {"snum": "4871", "from": 2.3, "to": 3.5, "delta": 1.2}, {"snum": "4909", "from": 2.0, "to": 3.1, "delta": 1.1}, {"snum": "4867", "from": 3.3, "to": 4.4, "delta": 1.1}, {"snum": "4969", "from": 2.0, "to": 3.0, "delta": 1.0}], "n": 159}, "vs12": {"base": "2025-08", "latest": "2026-08", "improved": [{"snum": "4884", "from": 2.6, "to": 1.6, "delta": -1.0}, {"snum": "4931", "from": 3.5, "to": 2.8, "delta": -0.7}, {"snum": "4835", "from": 3.0, "to": 2.5, "delta": -0.5}, {"snum": "4842", "from": 3.2, "to": 2.7, "delta": -0.5}, {"snum": "4863", "from": 2.3, "to": 1.8, "delta": -0.5}, {"snum": "4944", "from": 1.7, "to": 1.2, "delta": -0.5}, {"snum": "4947", "from": 2.1, "to": 1.6, "delta": -0.5}, {"snum": "4980", "from": 1.7, "to": 1.2, "delta": -0.5}, {"snum": "1264", "from": 1.4, "to": 1.0, "delta": -0.4}, {"snum": "4888", "from": 2.0, "to": 1.6, "delta": -0.4}], "worsened": [{"snum": "4963", "from": 3.1, "to": 4.2, "delta": 1.1}, {"snum": "4825", "from": 3.6, "to": 4.7, "delta": 1.1}, {"snum": "4914", "from": 2.8, "to": 3.8, "delta": 1.0}, {"snum": "4867", "from": 3.4, "to": 4.4, "delta": 1.0}, {"snum": "4974", "from": 3.0, "to": 3.8, "delta": 0.8}, {"snum": "4858", "from": 1.5, "to": 2.3, "delta": 0.8}, {"snum": "4872", "from": 1.9, "to": 2.6, "delta": 0.7}, {"snum": "1364", "from": 1.7, "to": 2.4, "delta": 0.7}, {"snum": "4981", "from": 3.7, "to": 4.3, "delta": 0.6}, {"snum": "4878", "from": 1.3, "to": 1.9, "delta": 0.6}], "n": 159}}