Per my usual practice, I downloaded the FAA Aircraft Registration database on 31 December. Here are the sizes of the number of aircraft that are registered as Experimental Amateur-Built. Note this does not include examples that are registered as Light Sport, or have a blank in the column where the type of registration is normally listed.

For each year, the fleet size shown is on the last day OF that year.

The last row has the overall fleet sizes.
Type
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
Air Command
56
56
54
36
35
31
31
25
19
18
Aventura
81
79
77
71
68
63
65
57
50
49
Avid
477
474
453
359
359
343
352
342
296
289
Baby/Junior Ace
281
279
275
230
228
228
230
225
204
201
Bede BD-4
153
151
134
98
91
93
92
90
78
82
Bede BD-5
77
78
70
49
43
40
41
38
34
35
Benson Gyro
717
689
518
271
218
200
198
158
105
79
Bowers Fly Baby
272
270
244
183
168
167
167
160
140
139
Challenger
659
670
657
584
594
586
593
578
491
480
Christen Eagle
240
238
238
214
207
206
205
204
194
192
Cozy
164
165
164
158
160
164
165
163
151
151
Glasair
651
650
651
601
606
596
603
599
571
571
GlaStar/Sportsman
346
355
358
374
386
396
407
424
410
424
Harmon Rocket
79
83
84
88
85
87
85
85
80
77
Hatz
106
106
109
105
107
110
111
110
112
111
Kitfox
1009
1024
1027
905
918
936
950
946
875
871
Lancair (All Models)
814
830
850
835
847
855
875
866
824
826
Lancair IV
245
245
246
246
244
259
260
249
236
240
Midget Mustang
301
294
282
241
240
236
238
233
207
205
Murphy
186
187
182
173
171
171
176
174
156
161
Pietenpol
362
363
351
307
313
311
321
319
296
297
Pulsar/KIS
155
153
150
130
126
124
125
122
107
108
Quickie/Q2/Q200
303
297
277
168
148
140
143
130
109
103
RAF-2000 Gyro
123
126
124
113
114
110
111
90
69
69
Rand KR-2
350
346
314
194
175
167
167
154
132
132
RANS
656
682
684
627
638
659
677
673
636
651
RANS S-12
165
165
161
130
129
128
128
121
107
106
RANS S-6
205
216
216
200
201
208
213
211
204
205
RANS S-7
167
176
178
180
189
202
206
209
202
210
Rotorway
502
500
495
404
392
374
380
350
296
296
Rutan Long-EZ
495
491
482
428
418
416
417
406
379
380
Rutan Varieze
473
467
423
323
297
286
286
272
243
238
SeaRey
219
229
237
231
242
242
249
255
241
238
Sonerai
309
307
287
215
199
194
194
184
156
156
Sonex
265
310
346
383
420
451
484
497
486
510
Steen Skybolt
301
292
284
250
246
247
248
235
215
215
Stolp
509
495
458
404
396
399
402
385
358
349
Thorp T-18
311
305
290
261
259
259
262
257
239
238
Vans
5254
5477
5674
5745
5956
6110
6293
6414
6447
6634
Vans RV-3
183
179
172
155
154
158
160
152
149
149
Vans RV-4
976
982
987
952
956
955
965
958
921
921
Vans RV-6
1767
1781
1786
1763
1783
1775
1795
1796
1731
1742
Vans RV-7
788
874
946
1000
1066
1118
1170
1220
1244
1285
Vans RV-8
913
959
1012
1038
1082
1123
1161
1198
1215
1252
Vans RV-9
419
452
484
522
552
588
611
630
638
658
Vans RV-10
221
253
281
304
340
366
394
419
434
459
Vans RV-12 (EX-AB)
8
19
28
36
49
53
63
68
74
75
Vans RV-14
0
0
0
0
0
0
14
38
66
98
Velocity
236
237
245
232
237
235
240
236
222
224
Volksplane
222
220
176
104
95
85
86
76
48
47
Zenair
726
789
841
862
920
965
1013
1028
992
1013
Zenair CH-601
311
326
344
340
348
353
367
367
339
332
Zenair CH-701
290
309
316
323
326
341
344
340
310
328
Zenair CH-750
11
30
57
86
127
145
171
187
209
229
Overall
32682
33038
32041
27946
27909
28078
28830
28451
26572
26842

Ron Wanttaja