Table:
year
single
peak chart positions
certifications
album

ger
aut
can dance
spa
fin
fra
swe
swi
us
us dance

1993
groove me
-
-
-
-
17
-
-
-
-
-
none
nonstop

close to you
19
-
1
-
-
-
-
-
46
22
none

1994
take your chance
18
-
5
-
-
-
35
37
88
-
none

pain
24
25
-
-
8
-
25
-
-
-
none

1995
i wanna b with u
11
18
2
-
12
-
-
-
45
10
none
fun-tastic

celebration
12
-
9
10
-
19
-
-
88
-
none

doh wah diddy
6
11
24
4
-
49
-
-
-
-
ger: gold

1996
don't go away
37
31
-
6
-
-
-
-
93
-
none

i love you
-
40
-
-
-
-
-
-
-
-
none

2015
let's get crunk
-
-
-
-
-
-
-
-
-
-
none
back to the factory

2016
turn it up
-
-
-
-
-
-
-
-
-
-
none

"-" denotes single that did not chart

Statement: in 2015, fun factory made the single "let's get crunk" of album "back to the factory".
Question: when did fun factory make the single "let's get crunk" of album "back to the factory"?
Answer: [2015.0]