My missing flags:

Country    New Visitors  Last New Visitor
1. Aland Islands 0 Never
2. American Samoa 0 Never
3. Anguilla 0 Never
4. Bahrain 0 Never
5. Belize 0 Never
6. Bermuda 0 Never
7. Bhutan 0 Never
8. Botswana 0 Never
9. British Indian Ocean Territory 0 Never
10. British Virgin Islands 0 Never
11. Burkina Faso 0 Never
12. Burundi 0 Never
13. Cape Verde 0 Never
14. Caribbean Netherlands 0 Never
15. Central African Republic 0 Never
16. Chad 0 Never
17. Christmas Island 0 Never
18. Comoros 0 Never
19. Cook Islands 0 Never
20. Djibouti 0 Never
21. Dominica 0 Never
22. Equatorial Guinea 0 Never
23. Eritrea 0 Never
24. Ethiopia 0 Never
25. Falkland Islands 0 Never
26. Faroe Islands 0 Never
27. French Guiana 0 Never
28. Gabon 0 Never
29. Gibraltar 0 Never
30. Greenland 0 Never
31. Grenada 0 Never
32. Guernsey 0 Never
33. Guinea 0 Never
34. Guinea-Bissau 0 Never
35. Haiti 0 Never
36. Isle of Man 0 Never
37. Jersey 0 Never
38. Kiribati 0 Never
39. Liberia 0 Never
40. Marshall Islands 0 Never
41. Martinique 0 Never
42. Mauritius 0 Never
43. Mayotte 0 Never
44. Micronesia 0 Never
45. Monaco 0 Never
46. Montenegro 0 Never
47. Montserrat 0 Never
48. Namibia 0 Never
49. Nauru 0 Never
50. New Caledonia 0 Never
51. Niger 0 Never
52. Niue 0 Never
53. Norfolk Island 0 Never
54. North Korea 0 Never
55. Northern Mariana Islands 0 Never
56. Papua New Guinea 0 Never
57. Qatar 0 Never
58. Republic of the Congo 0 Never
59. Rwanda 0 Never
60. Saint Barthelemy 0 Never
61. Saint Helena 0 Never
62. Saint Kitts and Nevis 0 Never
63. Saint Lucia 0 Never
64. Saint Martin 0 Never
65. Saint Pierre and Miquelon 0 Never
66. San Marino 0 Never
67. Sao Tome and Principe 0 Never
68. Senegal 0 Never
69. Seychelles 0 Never
70. Sierra Leone 0 Never
71. Sint Maarten 0 Never
72. Solomon Islands 0 Never
73. Somalia 0 Never
74. South Sudan 0 Never
75. Suriname 0 Never
76. Svalbard 0 Never
77. Swaziland 0 Never
78. Syria 0 Never
79. The Bahamas 0 Never
80. The Gambia 0 Never
81. Timor-Leste 0 Never
82. Togo 0 Never
83. Tokelau 0 Never
84. Tonga 0 Never
85. Trinidad and Tobago 0 Never
86. Turks and Caicos Islands 0 Never
87. Tuvalu 0 Never
88. Uganda 0 Never
89. Vanuatu 0 Never
90. Vatican City 0 Never
91. Virgin Islands 0 Never
92. Wallis and Futuna 0 Never
93. Western Sahara 0 Never
94. Zambia 0 Never
95. Zimbabwe 0 Never