level 1: n=1000000:0.00042
level 2: n=1000000:0.00067
level 3: n=1000000:0.01336
level 4: n=1000000:0.02154
level 5: n=1000000:0.01829
level 6: n=1000000:0.01168
level 7: n=1000000:0.00654
level 8: n=1000000:0.00345
level 9: n=1000000:0.00177
level 10: n=1000000:0.00089
level 11: n=1000000:0.00045
level 12: n=1000000:0.00023
level 13: n=1000000:0.00011
level 14: n=1000000:0.00006
level 15: n=1000000:0.00003
level 16: n=1000000:0.00001
level 17: n=1000000:0.00001
level 18: n=1000000:0.00000
level 19: n=1000000:0.00000
level 20: n=1000000:0.00000
level 21: n=1000000:0.00000
