Company name

The order of adoption (early ← → late)

O

1→5→6

P

1→8→6→5→2→4

Q

1→2→4→8→6

R

All of them started at once one year ago (now ongoing: 1, 2, 4, 6, 8)

S

1→5→4→2→6

T

All of them started at once one year ago (now ongoing: 1, 2, 3, 4, 5, 6)

U

All of them started at once one year ago (now ongoing: 1, 2, 3, 5)

V

1→2→3

W

All of them started at once one year ago (now ongoing: 1, 6)

X

1→2→5→4→6

Y

1, 5→6→2, 4, 8→3→8

Z

1→5→2