Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Animal Type | Introduced | Reintroduced | Retired | Beanie Baby Resembled |
| --- | --- | --- | --- | --- | --- |
| Antlers | Moose |  | 1999 (neon) | 1999 | Chocolate |
| Baba | Lamb |  | 1999 (neon) | 1999 | Fleece |
| Bruiser | Bulldog | 1997 |  |  | Wrinkles |
| Carrots | Bunny |  | 1999 (neon) | 1999 | Ears, but pink instead of brown |
| Chewy |  |  | 1999 (neon) | 1999 |  |
| Clover | Bunny | 1998 |  |  | Ears, but white instead of brown |
| Foxy | Fox |  |  |  | Sly |
| Glide | Porpoise |  |  |  | Echo the Dolphin |
| Huggy | Bear | 1995 | 1999 (neon) | 1999 | Cubbie, but yellow instead of brown |
| Meow | Cat | 1997 | 1999 (neon) | 1999 | Snip |
| Moo | Cow | 1995 |  |  | Daisy, but with white body instead of black |
| Oink | Pig | 1995 |  |  | Squealer |
| Paddles | Platypus |  | 1999 (neon) | 1999 | Patti |
| Purr | Tiger |  |  |  | Stripes, but yellow-orange instead of orange-black |
| Red | Bull |  |  |  | Snort |
| Ribbit (All-Green) | Frog | 1995 | 1999 (neon) | 1999 | Legs |
| Ribbit (Green-Yellow) | Frog |  |  |  | Smoochy |
| Sherbert | Tie-Dye Bear | 1998 | 1999 (neon) | 1999 | Sammy |
| Snap (All-Yellow) | Turtle | 1995 |  |  | Speedy, but yellow instead of green |
| Snap (Yellow-Green) | Turtle |  | 1999 (neon) |  | Peekaboo |
| Snuggy | Bear | 1995 |  |  | Cubbie, but pink instead of brown |
| Sparkler | Bear |  |  | 1999 | Spangle |
| Speckles | Leopard |  |  |  | Freckles |
| Spotty | Dalmatian |  |  |  | Dotty |
| Squirt | Elephant |  | 1999 (neon) | 1999 | Peanut |
| Swinger | Monkey |  | 1999 (neon) | 1999 | Bongo |
| Tide | Whale |  |  |  | Splash |
| Tubby | Hippopotamus |  |  |  | Happy |
| Woof | Dog | 1995 | 1999 (neon) | 1999 | Bones |
| Zulu | Zebra |  |  |  | Ziggy, but pink-green instead of black-white |
Question:
how long was woof the dog sold before it was retired?
Answer:
4 years