Question: In what year was the band that performed Chemical Heart formed?

full_context: Document 1: Violent and Lazy: "Violent and Lazy" is the fourth single by Grinspoon from their second studio album "Easy". It was released on 13 November 2000 on the Grudge label (the Australian imprint of Universal Records), which peaked at No. 15 on the ARIA Alternative Singles Chart.
Document 2: Hawk Nelson: Dunn's departure from the band, with Steingard replacing him on vocals marked the shift in the band's genre from fast-paced pop punk to a softer, contemporary alternative pop rock. On December 11, 2012, Hawk Nelson announced they had signed with Fair Trade Services. "Made" was released on April 2, 2013. The album's release was preceded by the release of the album's debut single on January 15, 2013, "Words", featuring Bart Millard of MercyMe, which reached No. 1 on the Christian Hot AC/CHR charts.
Document 3: Secrets (Grinspoon song): "Secrets" was the second single by Grinspoon which was released from their second studio album "Easy". It was released in January 2000 on the Grudge label (the Australian imprint of Universal Records), reaching No. 83 on the Australian Singles Chart and polling at No. 73 on Triple J's Hottest 100 for 2000.
Document 4: Regulate the Chemicals: Regulate the Chemicals is an album by indie rock band Twothirtyeight. The album was originally released in 2000 through Takehold Records. It was pressed on vinyl by the now-defunct BlessedKilling Records in 2001. When Twothirtyeight signed to Tooth & Nail Records, "Regulate the Chemicals" was re-released with the songs "The Sticks Are Woven In The Spokes" and "Les Wirth". Chris Carrabba contributed backing vocals on the album.
Document 5: Broods: MTV described the track as "a bittersweet synth-pop echo chamber". Broods signed with Capitol Records worldwide and Polydor in the UK and Europe in December 2013.
Document 6: Embrace the Curse: "Embrace the Curse" was re-released on June 24, 2008 due to the band signing a record deal with Glassnote Records. Some minor changes were made to the album, including changing the name of "Always Something" to "It's Always Better" and adding the band's third single, "I'm in Love With a Sociopath".
Document 7: Hard Act to Follow: "Hard Act to Follow" is a song by Australian rock band Grinspoon and was released as the lead single from their fourth studio album "Thrills, Kills & Sunday Pills". It reached No. 24 on the ARIA Singles Chart and was ranked #16 on Triple J's Hottest 100 of 2004.
Document 8: Chemical Heart: "Chemical Heart" was the first single released from Grinspoon's third studio album "New Detention" in 2002. It was a surprising change for fans because the grunge rock band had released ballads before, but they had never released one as their first single, and most people were expecting a hard rocking song like the later released single "Lost Control". The single marked a change in the band that could be seen after the year-long break they took from touring and recording, this time working with the record label Sony Universal, a joint venture with Sony BMG and Universal Music Group, instead of their low-key indie label Grudge Records.
Document 9: 1000 Miles (Grinspoon song): "1000 Miles" is the fourth single by Australian alternative metal, post-grunge band Grinspoon from their third studio album "New Detention" (June 2002). It was released on 18 August 2003 by Universal Music Australia, which reached the ARIA Singles Chart top 100.
Document 10: Ready 1: "Ready 1" is a song by Australian alternative metal group Grinspoon which was released 18 October 1999 as the lead single from their second studio album, "Easy". It peaked at No. 36 on the ARIA Singles Chart. It was written by band members Phil Jamieson and Pat Davern. Jamieson has also performed the song as a solo artist.
Document 11: What You Got (Grinspoon song): "What You Got" is the second single by Grinspoon from their fifth studio album "Alibis & Other Lies". The song was co-written by Phil Jamieson and Matthew Strong (Custard), who is the bass player in Jamieson’s side project, Lost Gospel. The single was only released in a digital format on iTunes.
Document 12: Rock Show (Grinspoon song): "Rock Show" was the third single by Grinspoon from their second studio album "Easy". It was released on 5 May 2000 on the Grudge label (the Australian imprint of Universal Records), reaching No. 78 on the Australian Singles Chart and polling at No. 33 on Triple J's Hottest 100 for 2000.
Document 13: No Reason (Grinspoon song): "No Reason" is a song by Grinspoon. It was released as the third single from their third studio album "New Detention". The song peaked at top 62 on the ARIA Singles Chart and polled at No. 15 on Triple J Hottest 100, 2002.
Document 14: Grinspoon: Grinspoon is an Australian rock band from Lismore, New South Wales formed in 1995 and fronted by Phil Jamieson on vocals and guitar with Pat Davern on guitar, Joe Hansen on bass guitar and Kristian Hopes on drums. Also in 1995, they won the Triple J-sponsored Unearthed competition for Lismore, with their post-grunge song "Sickfest". Their name was taken from Dr. Lester Grinspoon an Associate Professor Emeritus of Psychiatry at Harvard Medical School, who supports marijuana for medical use.
Document 15: Lost Control: "Lost Control" is a song by Grinspoon. It was released on 12 May 2002, as the second single from their third studio album, "New Detention", and peaked at No. 29 on the ARIA Singles Chart. It also reached No. 14 on Triple J's Hottest 100 in 2002. The video shows a woman driving to a Grinspoon concert at Bondi beach, where the fans cause chaos. It is the official theme song for AFL Live 2004.
ground_truth: 1995
sub_queries: Chemical Heart >> performer Answer: Grinspoon
Which year witnessed the formation of Grinspoon ? Answer: 1995