Notes on typing distributions:

65 distribution:

1. Normal

62 distribution:

1. Water

38 distribution:

1. Grass

35 distribution:

1. Psychic

31 distribution:

1. Fire

28 distribution:

1. Electric

27 distribution:

1. 
   

26 distribution:

1. Normal/Flying

22 distribution:

1. Fighting

18 distribution:

1. Bug

16 distribution:

1. Fairy
2. Poison

15 distribution:

1. Ground

14 distribution:

1. Bug/Flying
2. Ice
3. Grass/Poison

12 distribution:

1. Dragon

11 distribution:

1. Bug/Poison
2. Rock
3. Dark

9 distribution:

1. Water/Ground
2. Ghost

7 distribution:

1. Rock/Water
2. Grass/Flying
3. Water/Flying
4. Psychic/Flying
5. Steel

6 distribution:

1. Fire/Flying
2. Fire/Fighting
3. Bug/Grass
4. Bug/Steel
5. Steel/Psychic
6. Rock/Ground
7. Psychic/Fairy

5 distribution:

1. Normal/Fairy
2. Poison/Dark
3. Electric/Flying
4. Grass/Fairy
5. Water/Psychic
6. Water/Dark
7. Dark/Flying

4 distribution:

1. Normal/Fighting
2. Bug/Electric
3. Electric/Steel
4. Dragon/Flying
5. Rock/Flying
6. Water/Fairy
7. Dark/Dragon
8. Rock/Steel

3 distribution:

1. Normal/Psychic
2. Bug/Rock
3. Bug/Water
4. Bug/Fighting
5. Poison/Water
6. Poison/Flying
7. Ground/Flying
8. Ground/Rock
9. Ground/Steel
10. Ground/Dark
11. Ice/Ground
12. Ice/Water
13. Steel/Fairy
14. Steel/Rock
15. Steel/Ghost
16. Water/Rock
17. Rock/Electric
18. Grass/Steel
19. Grass/Dark
20. Grass/Fighting
21. Water/Ice
22. Water/Grass
23. Water/Poison
24. Ghost/Poison
25. Ghost/Flying
26. Ghost/Fire
27. Psychic/Ghost

2 distribution:

1. Fairy/Flying
2. Normal/Grass
3. Fire/Dragon
4. Fire/Ground
5. Fire/Normal
6. Fire/Psychic
7. Bug/Fire
8. Bug/Fairy
9. Water/Bug
10. Bug/Ground
11. Poison/Fire
12. Poison/Ground
13. Poison/Fighting
14. Flying/Dragon
15. Fighting/Psychic
16. Ground/Dragon
17. Ground/Psychic
18. Ground/Ghost
19. Ice/Flying
20. Ice/Steel
21. Ice/Psychic
22. Steel/Flying
23. Electric/Fairy
24. Electric/Normal
25. Dragon/Psychic
26. Dragon/Fighting
27. Rock/Ice
28. Rock/Dragon
29. Rock/Fairy
30. Rock/Psychic
31. Rock/Bug
32. Rock/Grass
33. Grass/Ice
34. Grass/Dragon
35. Grass/Psychic
36. Water/Electric
37. Water/Fighting
38. Water/Dragon
39. Water/Ghost
40. Dark/Fighting
41. Dark/Fire
42. Dark/Ice
43. Dark/Normal
44. Dark/Steel
45. Dark/Psychic
46. Ghost/Ground
47. Psychic/Fighting
48. Fire/Ghost
49. Poison/Dragon
50. Psychic/Steel

1 distribution:

1. Normal/Ground
2. Normal/Dragon
3. Normal/Water
4. Fire/Rock
5. Fire/Steel
6. Fire/Water
7. Fire/Dark
8. Bug/Ghost
9. Poison/Bug
10. Flying
11. Fighting/Ice
12. Fighting/Steel
13. Fighting/Flying
14. Fighting/Ghost
15. Fighting/Dark
16. Ground/Electric
17. Ice/Fairy
18. Ice/Ghost
19. Steel/Fighting
20. Steel/Ground
21. Steel/Dragon
22. Electric/Ice
23. Electric/Fire
24. Electric/Grass
25. Electric/Dragon
26. Dragon/Electric
27. Electric/Ghost
28. Electric/Psychic
29. Electric/Water
30. Dragon/Fire
31. Dragon/Ice
32. Rock/Fighting
33. Rock/Dark
34. Rock/Poison
35. Grass/Ground
36. Psychic/Grass
37. Grass/Ghost
38. Water/Steel
39. Dark/Ghost
40. Ghost/Dark
41. Ghost/Fairy
42. Ghost/Dragon
43. Psychic/Fire
44. Psychic/Dark
45. Psychic/Dragon
46. Ground/Fire
47. Dragon/Fairy

Zero distribution:

1. Fairy/Electric
2. Fairy/Fire
3. Fairy/Ground
4. Fairy/Rock
5. Fairy/Normal
6. Fairy/Steel
7. Fairy/Poison
8. Fairy/Ice
9. Fairy/Ghost
10. Fairy/Dragon
11. Fairy/Fighting
12. Fairy/Grass
13. Fairy/Dark
14. Fairy/Psychic
15. Fairy/Water
16. Fairy/Bug
17. Normal/Electric
18. Normal/Fire
19. Normal/Rock
20. Normal/Steel
21. Normal/Poison
22. Normal/Ice
23. Normal/Ghost
24. Normal/Dark
25. Normal/Bug
26. Fire/Bug
27. Fire/Fairy
28. Fire/Poison
29. Fire/Ice
30. Fire/Electric
31. Fire/Grass
32. Bug/Dark
33. Bug/Ice
34. Bug/Dragon 
35. Bug/Normal
36. Bug/Psychic
37. Poison/Psychic
38. Poison/Ghost 
39. Poison/Grass
40. Poison/Rock
41. Poison/Normal
42. Poison/Steel
43. Poison/Electric
44. Poison/Ice
45. Poison/Fairy
46. Flying/Normal
47. Flying/Ice
48. Flying/Bug
49. Flying/Rock
50. Flying/Poison
51. Flying/Psychic
52. Flying/Ground
53. Flying/Electric
54. Flying/Water
55. Flying/Steel
56. Flying/Dark
57. Flying/Fairy
58. Flying/Grass
59. Flying/Ghost
60. Flying/Fire
61. Flying/Fighting
62. Fighting/Fire
63. Fighting/Ground
64. Fighting/Electric
65. Fighting/Rock
66. Fighting/Fairy
67. Fighting/Poison
68. Fighting/Grass
69. Fighting/Water
70. Fighting/Dragon
71. Fighting/Normal
72. Fighting/Bug
73. Ground/Ice 
74. Ground/Water 
75. Ground/Grass 
76. Ground/Fighting
77. Ground/Bug 
78. Ground/Fairy 
79. Ground/Poison 
80. Ground/Normal 
81. Ice/Fire
82. Ice/Bug
83. Ice/Electric 
84. Ice/Poison
85. Ice/Fighting
86. Ice/Grass 
87. Ice/Rock 
88. Ice/Dragon
89. Ice/Dark
90. Ice/Normal
91. Steel/Ice
92. Steel/Water
93. Steel/Fire
94. Steel/Grass
95. Steel/Bug
96. Steel/Dark 
97. Steel/Electric
98. Steel/Poison 
99. Steel/Normal
100. Electric/Ground
101. Electric/Dark
102. Electric/Bug
103. Electric/Fighting
104. Electric/Poison
105. Electric/Rock
106. Dragon/Poison
107. Dragon/Water
108. Dragon/Bug
109. Dragon/Dark
110. Dragon/Rock 
111. Dragon/Grass
112. Dragon/Normal
113. Dragon/Steel
114. Dragon/Ground
115. Dragon/Ghost
116. Rock/Ghost
117. Rock/Fire
118. Rock/Normal
119. Grass/Normal
120. Grass/Fire
121. Grass/Rock
122. Grass/Bug
123. Grass/Electric
124. Grass/Water 
125. Water/Fire
126. Water/Normal
127. Dark/Fairy
128. Dark/Poison
129. Dark/Bug
130. Dark/Electric
131. Dark/Water
132. Dark/Grass
133. Dark/Ground
134. Dark/Rock
135. Ghost/Steel
136. Ghost/Psychic
137. Ghost/Electric
138. Ghost/Normal
139. Ghost/Rock
140. Ghost/Fighting
141. Ghost/Ice
142. Ghost/Grass
143. Ghost/Bug
144. Ghost/Water
145. Psychic/Rock 
146. Psychic/Water 
147. Psychic/Electric 
148. Psychic/Ground 
149. Psychic/Poison 
150. Psychic/Bug 
151. Psychic/Ice 
152. Psychic/Normal

Edit (01.04.2018): Added Ultra Necrozma's Psychic/Dragon, Naganadel and Blacephalon, alongside other USUM stuff. Necrozma forms are counted as separate species like in Bulbapedia. Also fixed a few ORAS related errors like Primal Groudon and Mega Altaria's typings.

Edit(30.11.2018): Added Meltan and Melmetal.