Table B1  The unscaled transition rate matrix among the 15 ibd states
State123456789101112131415
1(abcd)0ηη0ηη00000000
2(ab)(cd)00000000
3(abc)(d)β0η000ββη0η00
4(abd)(c)β0η000ββ0η0η0
5(ab)(c)(d)000000ββββ
6(acd)(b)β0000ηββηη000
7(a)(bcd)β0000ηββ00ηη0
8(a)(b)(cd)000000ββββ
9(ac)(bd)00000000
10(ad)(bc)00000000
11(ac)(b)(d)000β0β0ββ0
12(ad)(b)(c)000β0β0β0β
13(a)(bc)(d)000β0β0β0β
14(a)(bd)(c)000β0β00ββ
15(a)(b)(c)(d)00000000