How many percent of the total notes payable is the 2029 Notes?
{"2024 Notes": {"Amount (USDMillion)": 1250.0, "Interest Rate (per annum)": 3.28, "Due": 2024.0}, "2024 Floating Rate Notes": {"Amount (USDMillion)": 750, "Interest Rate (per annum)": 3, "Due": 2024}, "2026 Notes": {"Amount (USDMillion)": 500.0, "Interest Rate (per annum)": 3.575, "Due": 2026.0}, "2029 Notes": {"Amount (USDMillion)": 3000.0, "Interest Rate (per annum)": 3.975, "Due": 2029.0}, "2049 Notes": {"Amount (USDMillion)": 500.0, "Interest Rate (per annum)": 4.525, "Due": 2049.0}, "": {"Amount (USDMillion)": 6000, "Interest Rate (per annum)": "", "Due": ""}}
notes_2029 = df["2029 Notes"]["Amount (USDMillion)"]
total_notes = df[""]["Amount (USDMillion)"]
answer = notes_2029 / total_notes * 100.0