Table:
business
farming
professional
rental
fishing

number

1989
25,806
-4,815
5,297
642
-1,889

1990
31,823
-14,478
8,133
174
-2,906

1991
3,238
-3,582
3,117
11,196
-835

1992
40,165
-1,968
6,004
18,766
2,626

1993
45,593
3,662
7,163
19,367
-1,362

1994
65,089
1,384
8,156
18,932
315

1995
48,370
-102
10,619
3,596
-1,235

1996
65,303
-466
4,168
9,609
-1,680

1997
68,009
-1,076
5,930
11,210
-2,718

1998
42,757
-6,655
3,973
7,514
-2,593

1999
22,434
-4,848
2,424
3,469
1,449

2000
10,895
-1,264
-446
-3,019
107

2001
12,379
1,840
-2,122
4,267
-153

2002
5,576
-7,144
124
10,998
247

2003
42,192
-15,564
1,812
18
-145

2004
16,195
-4,833
-1,347
-2,031
-827

2005
46,183
-263
-2,706
-3,511
-2,223

2006
21,600
-8,772
-2,834
-4,289
-1,668

2007
54,943
3,059
-3,547
-3,435
-266

2008
6,271
-1,796
-1,291
3,437
-1,683

2009
-19,428
-3,688
-4,073
23,236
-1,566

2010
28,707
-1,075
913
13,293
331

annual average
31,095
-3,293
2,249
6,520
-849

Statement: the rental sector had an additional 6,520 unincorporated self-employed individuals each year between 1989 and 2010.
Question: how many unincorporated self-employed individuals the rental sector had between 1989 and 2010?
Answer: [6520.0]