Numbers_of_photon_n frequency
0 0
1 0
2 1
3 0
4 9
5 21
6 75
7 158
8 339
9 530
10 787
11 1068
12 1130
13 1102
14 905
15 689
16 427
17 214
18 115
19 51
20 13
21 1